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3-AMINOPYRIDINE

Chemical Identification
CAS #	462-08-08
Formula	C₅H₆N₂
Synonyms	ß-aminopyridine; 3-AP; 3-pyridylamine m-aminopyridine; amino-3-pyridine; ß-pyridylamine

Physical Properties
Physical description	White to yellow-brown crystals with an unpleasant odor.
Boiling point	483.8°F	Molecular weight	94.13
Freezing point/melting point	147.2°F	Vapor pressure
Flash point	190.4°F	Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	A174
Sampling group
Sampler/Sampling media	2 GFFs (37 mm) coated with sulfuric acid, in 3-piece cassette, separated by the ring section [SKC 225-9004]
Sampling time^*	240 min
Sampling volume (TWA)^*	240 L
Sampling flow rate (TWA)^*	1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-NPD
Method reference	OSHA PV2143 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Aminopyridines

NIOSH: Pocket Guide to Chemical Hazards - Aminopyridines

Literature References

Acros Organics N.V.: Material Safety Data Sheet: 3-Aminopyridine, 99%.
Galvan, M., Franz, P. and Vogel-Weins, C.: Actions of potassium channel blockers on guinea-pig lateral olfactory tract axons. Naunyn-Schmiedebergs Arch. Pharmacol. 325(1): 8-11, 1984.
Riker, W.K., Matsumoto, M. and Takashima, K.: Synaptic facilitation by 3-aminopyridine and its antagonism by verapamil and diltiazem. J. Pharmacol. Exp. Ther. 235(2): 431-435, 1985.
Slezia, A., et al.: Uridine release during aminopyridine-induced epilepsy. Neurobiol. Dis. 16(3): 490-499, 2004.

Last Updated Date : 12/15/2020

2-METHOXY-1-PROPYL ACETATE

Chemical Identification
CAS #	70657-70-4
Formula	C₆H₁₂O₃
Synonyms	methoxypropyl acetate; methoxy propyl acetate; 2-methoxy-1-acetoxypropane; MPA; 2-methoxy-1-propanol acetate; acetic acid 2-methoxy propyl ester; 2-methoxy propyl acetate; propylene glycol monomethyl ether acetate (β-isomer)

Physical Properties
Physical description	Clear liquid
Boiling point		Molecular weight	132.16
Freezing point/melting point		Vapor pressure	0.516 kPa
Flash point	77°F	Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	M215
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*	3 L
Sampling flow rate (STEL/Peak/C)^*	0.2 L/min
Analytical method instruments	GC-FID
Method reference	OSHA 99 (fully validated)
Notes	Keep samples refrigerated when not in transit. Ship samples overnight with cold-packs as soon as possible.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not listed

NIOSH: Pocket Guide to Chemical Hazards - Not listed

Literature References

Last Updated Date : 09/21/2022

2-ETHYLHEXYL ACRYLATE

Chemical Identification
CAS #	103-11-7
Formula	C₁₁H₂₀O₂
Synonyms	2-propenoic acid, 2-ethylhexyl ester; 1-hexanol, 2-ethylacrylate; 2-ethylhexylpropenoate; acrylic acid, 2-ethylhexyl ester; octyl acrylate

Physical Properties
Physical description	Clear liquid with a pleasant odor.
Boiling point	417-424°F	Molecular weight	184.3
Freezing point/melting point	-130°F	Vapor pressure	0.01 mmHg
Flash point	180°F	Vapor density	6.35
Specific gravity	0.885	Ionization potential
Lower explosive limit (LEL)	0.8%	Upper explosive limit (UEL)	6.4%
NFPA health rating	1	NFPA fire rating	2
NFPA reactivity rating	1	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	1055
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) coated with 10% t-butylcatechol [SKC 226-73]
Sampling time^*	120 min
Sampling volume (TWA)^*	12 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-FID
Method reference	OSHA PV2026 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 2-Ethylhexyl acrylate

NIOSH: Pocket Guide to Chemical Hazards - 2-Ethylhexyl acrylate

Literature References

Last Updated Date : 12/15/2020

2-METHOXY-1-PROPANOL

Chemical Identification
CAS #	1589-47-5
Formula	C₄H₁₀O₂
Synonyms	2-methoxypropanol; propylene glycol 2-methyl ether; propylene glycol 2-monomethyl ether; propylene glycol monomethyl ether

Physical Properties
Physical description	Clear liquid.
Boiling point	248°F	Molecular weight	90.12
Freezing point/melting point		Vapor pressure
Flash point		Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	M216
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*	3 L
Sampling flow rate (STEL/Peak/C)^*	0.2 L/min
Analytical method instruments	GC-FID
Method reference	OSHA 99 (fully validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not listed

NIOSH: Pocket Guide to Chemical Hazards - Not listed

Literature References

Last Updated Date : 12/15/2020

2-BROMOPROPANE

Chemical Identification
CAS #	75-26-3
Formula	C₃H₇Br
Synonyms	isopropyl bromide

Physical Properties
Physical description	Colorless to slightly yellow flammable liquid.
Boiling point	138°F	Molecular weight	123.01
Freezing point/melting point	-128°F	Vapor pressure	31.5 kPa
Flash point	71.6°F	Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	R289
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*	240 minutes
Sampling volume (TWA)^*	12 L
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	GC-ECD
Method reference	OSHA 1017 (fully validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not listed

NIOSH: Pocket Guide to Chemical Hazards - Not listed

Literature References

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TX4111000
National Toxicology Program: NTP-CERHR Monograph on the Potential Human Reproductive and Developmental Effects of 2-Bromopropane (2-BP) .
Ichihara, G.: Neuro-reproductive toxicities of 1-bromopropane and 2-bromopropane. Int. Arch. Occup. Environ. Med. 78(2): 79-96, 2005.
Ichihara, G., et al.: Occupational health survey on workers exposed to 2-bromopropane at low concentrations. Am. J. Ind. Med. 35(5): 523-531, 1999.
Park, J.-S., Kim, Y., Park, D.W., Choi, K.S. Park, S.-H. and Moon, Y.-H.: An outbreak of hematopoietic and preproductive disorders due to solvents containing 2-bromopropane in an electronic factory, South Korea: Epidemiological survey. J. Occup. Health 39(2): 138-143, 1997.
Pohanish, R.P. (editor): Bromopropane. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 380-381.
Yu, I.J., Kim, H.Y., Lim, C.H., Lee, Y.M. and Moon, Y.H.: The occupational exposure level (OEL) for 2-bromopropane: the first OEL established by Korea. Appl. Occup. Environ. Hyg. 14(6): 356-358, 1999.

Last Updated Date : 12/15/2020

2-AMINO-2-METHYLPROPANOL

Chemical Identification
CAS #	124-68-5
Formula	C₄H₁₁NO
Synonyms	AMP; 2-aminodimethylethanol; β -aminoisobutanol; 2-amino-2-methylpropan-1-ol; 2-amino-2-methyl-1-propanol; isobutanol-2-amine; isobutanolamine

Physical Properties
Physical description	A clear light colored liquid.
Boiling point	329°F	Molecular weight	89.14
Freezing point/melting point	89.6°F	Vapor pressure
Flash point	153°F	Vapor density
Specific gravity	0.935	Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating	2	NFPA fire rating	2
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	A615
Sampling group
Sampler/Sampling media	XAD-2 tube (80/40) coated with 10% 1-naphthylisothiocyanate (NITC) [SKC 226-30-18]
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	LC-UV
Method reference	OSHA PV2145 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - 2-Amino-2-methyl-1-propanol

NIOSH: Pocket Guide to Chemical Hazards - 2-Amino-2-methyl-1-propanol

Literature References

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: UA5950000
Cipolla, C., et al.: Airborne contact dermatitis from 2-amino-2-methyl-1-propanol in a cosmetic company. Arh. Hig. Rada Toksikol. 48(2): 205-209, 1997.
Cosmetic Ingredient Review Board: A final report on the safety assessment of aminomethylpropanol and aminomethylpropanediol. J. Am. Coll. Toxicol. 9(2): 203-228, 1990.
Detwiler-Okabayashi, K.A. and Schaper, M.M.: Respiratory effects of a synthetic metalworking fluid and its components. Arch. Toxicol. 70(3-4): 195-201, 1996.
Yue, K.T., Mulford, D.J. and Russell, P.J.: The metabolism of 2-amino-2-methylpropanol in young rats. Arch. Biochem. Biophys. 136(1): 47-53, 1970.

Last Updated Date : 12/15/2020

2,3-PENTANEDIONE

Chemical Identification
CAS #	600-14-6
Formula	C₅H₈O₂
Synonyms	acetyl propanal; acetyl propionyl; β, γ-dioxopentane; 2,3-pentadione

Physical Properties
Physical description	Yellow to green-yellow liquid with a buttery odor.
Boiling point	230-234°F	Molecular weight	100.12
Freezing point/melting point	-61.6°F	Vapor pressure	2.67 kPa
Flash point	66°F	Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)		Upper explosive limit (UEL)
NFPA health rating		NFPA fire rating
NFPA reactivity rating		NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	P110
Sampling group
Sampler/Sampling media	2 Specially dried silica gel tubes in series; each tube has a single 600 mg section and a GFF, filter faces forward when sampling [SKC 226-183]
Sampling time^*	200 min
Sampling volume (TWA)^*	10 L (9 L if also sampling for diacetyl and/or acetoin)
Sampling flow rate (TWA)^*	0.05 L/min
Sampling volume (STEL/Peak/C)^*	3 L
Sampling flow rate (STEL/Peak/C)^*	0.2 L/min
Analytical method instruments	GC-FID
Method reference	OSHA 1016 (fully validated)
Notes	Use an opaque tube holder or wrap tubes with aluminum foil or other opaque material while sampling. Separate the 2 tubes and cap both ends of each tube as soon as possible after sampling. Individually seal the 2 tubes. Protect tubes from light after sampling.
Special requirements	Samples should be kept cold and shipped cold to the lab by overnight shipping as soon as possible.

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA	<9.3 ppb [as an 8-hr TWA]	TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL	31 ppb [15 minutes]	TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	N	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes:		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not listed

NIOSH: Pocket Guide to Chemical Hazards - Not listed

Literature References

DHHS (NIOSH) Publication Number 2016-111. Criteria for a Recommended Standard: Occupational Exposure to Diacetyl and 2,3-Pentanedione.

Last Updated Date : 12/15/2020

2,2,4-TRIMETHYL-1,3-PENTANEDIOL DIISOBUTYRATE

Chemical Identification
CAS #	6846-50-0
Formula	C₁₆H₃₀O₄
Synonyms	Kodaflex TX1B; isobutyric acid,1-isopropyl-2,2-dimethyltrimethylene ester; propanoic acid, 2-methyl-, 2,2-dimethyl-1-(1-methylethyl)-1,3-propanediyl ester; 2,2,4-trimethylpentanediol-1,3-diisobutyrate

Physical Properties
Physical description	Clear liquid with a musty odor.
Boiling point	716°F	Molecular weight	286.41
Freezing point/melting point	-94°F	Vapor pressure	8.5x10(-3) mmHg
Flash point	250°F (open cup)	Vapor density
Specific gravity		Ionization potential
Lower explosive limit (LEL)	0.5% at 342°F	Upper explosive limit (UEL)
NFPA health rating	1	NFPA fire rating	1
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	T350
Sampling group
Sampler/Sampling media
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments
Method reference	OSHA PV2002 (partially validated)
Notes	Submit as a separate sample.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals -

NIOSH: Pocket Guide to Chemical Hazards -

Literature References

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: SA1420000

Last Updated Date : 12/19/2018

1-METHOXY-2-PROPYL ACETATE

Chemical Identification
CAS #	108-65-6
Formula	C₆H₁₂O₃
Synonyms	1-methoxy-2-acetoxypropane; 2-methoxy-1-methylethyl ester acetic acid; 1-methoxy-2-propanol acetate; 1-methoxy-2-propyl acetate; PGMEA; 1,2-propanediol monomethyl ether acetate; propylene glycol methyl ether acetate; propylene glycol monomethyl ether acetate

Physical Properties
Physical description	Colorless, flammable liquid with sweet ether-like odor.
Boiling point	302°F	Molecular weight	132.16
Freezing point/melting point		Vapor pressure
Flash point		Vapor density
Specific gravity	0.969	Ionization potential
Lower explosive limit (LEL)	1.3% at 173°F	Upper explosive limit (UEL)	13.1% at 283°F
NFPA health rating	1	NFPA fire rating	2
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	P218
Sampling group
Sampler/Sampling media	CSC tube (100/50 mg) [SKC 226-01]
Sampling time^*	100 min
Sampling volume (TWA)^*	10 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*	3 L
Sampling flow rate (STEL/Peak/C)^*	0.2 L/min
Analytical method instruments	GC-FID
Method reference	OSHA 99 (fully validated)
Notes	Keep samples refrigerated when not in transit. Ship samples overnight with cold-packs as soon as possible.
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA	100 ppm (541 mg/m³)
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL	150 ppm (811 mg/m³)
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	Y
Notes: Not established		Notes: Not established		Notes: Not established		Notes:
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: Not listed

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Propylene glycol methyl ether acetate

NIOSH: Pocket Guide to Chemical Hazards - Propylene glycol methyl ether acetate

Literature References

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: AI8925000
Domoradzki, J.Y., Brzak, K.A. and Thornton, C.M.: Hydrolysis kinetics of Propylene glycol monomethyl ether acetate in rats in vivo and in rat and human tissues in vitro. Toxicol. Sci. 75(1): 31-39, 2003.
Miller, R.R., Hermann, E.A., Young, J.T., Calhoun, L.L. and Kastl, P.E.: Propylene glycol monomethyl ether acetate (PGMEA) metabolism, disposition, and short-term vapor inhalation toxicity studies. Toxicol. Appl. Pharmacol. 75(3): 521-530, 1984.

Last Updated Date : 09/21/2022

1-AMINO-2-PROPANOL

Chemical Identification
CAS #	78-96-6
Formula	C₃H₉NO
Synonyms	1-aminopropan-2-ol; ⍺-aminoisopropyl alcohol; 2-hydroxypropylamine; isopropanolamine; 1-methyl-2-aminoethanol

Physical Properties
Physical description	A colorless liquid with a slight ammonia-like odor.
Boiling point	313-316°F	Molecular weight	75.13
Freezing point/melting point	34.5°F	Vapor pressure	2.59 mmHg
Flash point	171°F	Vapor density	2.6
Specific gravity	0.961	Ionization potential
Lower explosive limit (LEL)	2.20%	Upper explosive limit (UEL)	12%
NFPA health rating	3	NFPA fire rating	2
NFPA reactivity rating	0	NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA
Analyte code (IMIS no.)	A606
Sampling group
Sampler/Sampling media	XAD-2 tube (80/40) coated with 10% 1-naphthylisothiocyanate (NITC) [SKC 226-30-18]
Sampling time^*	200 min
Sampling volume (TWA)^*	20 L
Sampling flow rate (TWA)^*	0.1 L/min
Sampling volume (STEL/Peak/C)^*
Sampling flow rate (STEL/Peak/C)^*
Analytical method instruments	HPLC
Method reference	OSHA PV2122 (partially validated)
Notes
Special requirements

^* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method
Wipe Sampler/Sampling media
Bulk Method

On-Site Screening Techniques
Device
Model/Type
Sampling information (see manufacturer instructions)

**Exposure Limits**
OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak		NIOSH REL Up to 10-hour TWA (ST) STEL (C) Ceiling		ACGIH TLV© 8-hour TWA (ST) STEL (C) Ceiling		CAL/OSHA PEL 8-hour TWA (ST) STEL (C) Ceiling Peak
PEL-TWA		REL-TWA		TLV-TWA		PEL-TWA
PEL-STEL		REL-STEL		TLV-STEL		PEL-STEL
PEL-C		REL-C		TLV-C		PEL-C
Skin notation	NA	Skin notation	NA	Skin notation	NA	Skin notation	NA
Notes: Not established		Notes: Not established		Notes: Not established		Notes: Not established
Health factors: See NIH-NLM PubChem.		IDLH
Carcinogenic classifications:		Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

NOAA: CAMEO Chemicals - Monoisopropanolamine

NIOSH: Pocket Guide to Chemical Hazards - Monoisopropanolamine

Literature References

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: UA5775000
International Chemical Safety Cards (WHO/IPCS/ILO): Isopropanolamine.
Detwiler-Okabayashi, K.A. and Schaper, M.M.: Respiratory effects of a synthetic metalworking fluid and its components. Arch. Toxicol. 70(3-4): 195-201, 1996.
Geier, J., et al.: Patch testing with components of water-based metalworking fluids: results of a multicentre study with a second series. Contact Dermatitis 55(6): 322-329, 2006.
Hervin, R.L. and Lucas, J.B.: Occupational Health Case Report No. 8. Monoisopropanolamine. J. Occup. Med. 16(5): 355-357, 1974.
No authors listed: Summary of Evaluations Performed by the Joint FAO/WHO Expert Committee on Food Additives, 1-Amino-2-propanol.

Last Updated Date : 12/15/2020

3-AMINOPYRIDINE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2-METHOXY-1-PROPYL ACETATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2-ETHYLHEXYL ACRYLATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2-METHOXY-1-PROPANOL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2-BROMOPROPANE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2-AMINO-2-METHYLPROPANOL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2,3-PENTANEDIONE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

2,2,4-TRIMETHYL-1,3-PENTANEDIOL DIISOBUTYRATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1-METHOXY-2-PROPYL ACETATE

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References

1-AMINO-2-PROPANOL

Chemical Identification

Physical Properties

Monitoring Methods Used by OSHA

Bulk/Wipe Method

On-Site Screening Techniques

Exposure Limits

Additional Resources and Literature References