1. OSHA Occupational Chemical Database
  2. BENOMYL
Label abbreviations descriptions

BENOMYL†

Chemical Identification
Chemical Identification
CAS # 17804-35-2
Formula

C₁₄H₁₈N₄O₃
Synonyms

methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate; Benlate; Tersan1991
Physical Properties
Physical Properties
Physical description White crystalline solid with a faint, acrid odor.
Boiling point decomposes Molecular weight 290.4
Freezing point/melting point >572°F (decomposes) Vapor pressure <0.00001 mmHg
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
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) B407 (total dust) B405 (respirable fraction)
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] OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time*

60 min
Sampling volume (TWA)*

60 L

60 L
Sampling flow rate (TWA)*

1 L/min

1.7 L/min
Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments HPLC-UV HPLC-UV
Method reference OSHA PV2107 (partially validated) OSHA PV2107 (partially validated)
Notes

FOR TOTAL DUST, DO NOT USE A CYCLONE!!

OVS-2 must be preceded by 10 mm nylon cyclone!
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.

Wipe Method
Wipe Method
Sampler/Sampling media

Wipe with GFF (37 mm), Type A/E [AP4003705]
Bulk Method
Bulk Method

Limit the amount of bulk submitted to 1 g or 1 mL.
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
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

15 mg/m³ (total dust), 5 mg/m³ (respirable fraction)

 REL-TWA TLV-TWA

1 mg/m³ (inhalable particulate matter) [2007]

 PEL-TWA

10 mg/m³ (total dust), 5 mg/m³ (respirable fraction)
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

N

 Skin notation

N

 Skin notation

N

 Skin notation

N
Notes:

See 29 CFR 1910.1000 Table Z-1.

 Notes:

See Appendix D - Substances with No Established RELs

 Notes:

dermal sensitizer (DSEN)

 Notes:

See footnote [n].
Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: TLV-A3 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Benomyl

NIOSH: Pocket Guide to Chemical Hazards - Benomyl

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Benomyl. See annual publication for most recent information.

Last Updated Date : 12/17/2020