# NIOSH Pocket Guide to Chemical Hazards
Benomyl | CAS 17804-35-2
C14H18N4O3 | RTECS DD6475000
Synonyms & Trade Names Methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate | DOT ID & Guide 2757 151 (carbamate pesticide, solid)
Exposure Limits | NIOSH REL: See Appendix D
OSHA PEL†: TWA 15 mg/m3 (total) TWA 5 mg/m3 (resp)
IDLH N.D. | Conversion
Physical Description White crystalline solid with a faint, acrid odor. [fungicide] [Note: Decomposes without melting above 572°F.]
MW: 290.4 | BP: Decomposes | MLT: >572°F (Decomposes) | Sol: 0.0004%
VP: <0.00001 mmHg | IP: NA |  | Sp.Gr: ?
Fl.P: NA | UEL: NA | LEL: NA |
Noncombustible Solid
Incompatibilities & Reactivities Heat, strong acids, strong alkalis
Measurement Methods NIOSH 0500, 0600
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, upper respiratory system; skin sensitization; possible reproductive, teratogenic effects
Target Organs Eyes, skin, respiratory system, reproductive system
See also: INTRODUCTION