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
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