# NIOSH Pocket Guide to Chemical Hazards
Dicrotophos | CAS 141-66-2
C8H16NO5P | RTECS TC3850000
Synonyms & Trade Names Bidrin®, Carbicron®, 2-Dimethyl cis-2-dimethylcarbamoyl-1-methylvinylphosphate | DOT ID & Guide
Exposure Limits | NIOSH REL: TWA 0.25 mg/m3 [skin]
OSHA PEL†: none
IDLH N.D. | Conversion 1 ppm = 9.70 mg/m3
Physical Description Yellow-brown liquid with a mild, ester odor. [insecticide]
MW: 237.2 | BP: 752°F | FRZ: ? | Sol: Miscible
VP: 0.0001 mmHg | IP: ? |  | Sp.Gr(59°F): 1.22
Fl.P: >200°F | UEL: ? | LEL: ? |
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities Metals [Note: Corrosive to cast iron, mild steel, brass & stainless steel.]
Measurement Methods NIOSH 5600
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily Provide: Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Water wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations To be added later
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Headache, nausea, dizziness, anxiety, restlessness, muscle twitching, lassitude (weakness, exhaustion), tremor, incoordination, vomiting, abdominal cramps, diarrhea; salivation, sweating, lacrimation (discharge of tears), rhinitis; anorexia, malaise (vague feeling of discomfort)
Target Organs central nervous system, blood cholinesterase
See also: INTRODUCTION