Label abbreviations descriptions

AZINPHOS-METHYL (GUTHION)†

Chemical Identification
CAS # 86-50-0
Formula

C₁₀H₁₂N₃O₃PS₂
Synonyms

guthion; O,o-dimethyl S-4-oxo-1,2,3-benzotriazin-3(4H)-ylmethyl phosphorodithioate; phosphorodithioic acid, O,o-dimethyl ester, S-ester with 3-(mercaptomethyl)-1,2,3-benzotriazin-4 (3H)-one

Physical Properties
Physical description Colorless crystals or a brown, waxy solid.
Boiling point decomposes Molecular weight 317.3
Freezing point/melting point 163°F Vapor pressure 8 X 10-9 mmHg
Flash point Vapor density
Specific gravity 1.44 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.) 0300
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time*

480 min
Sampling volume (TWA)*

480 L
Sampling flow rate (TWA)*

1 L/min
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FPD
Method reference OSHA PV2087 (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

0.2 mg/m³

 REL-TWA

0.2 mg/m³

 TLV-TWA PEL-TWA

0.2 mg/m³
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

Y

 Skin notation

Y

 Skin notation

Y

 Skin notation

Y
Notes:

See 29 CFR 1910.1000 Table Z-1.

 Notes: Notes:

Visit the ACGIH TLV site for specific data
dermal sensitizer (DSEN), BEI®

 Notes:
Health factors:  See NIH-NLM PubChem. IDLH

10 mg/mg³
Carcinogenic classifications: TLV-A4 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 04/03/2024