September 2010
NIOSH Publication Number 2010-168c

Crufomate

Synonyms & Trade Names
4-t-Butyl-2-chlorophenylmethyl methylphosphoramidate, Dowco® 132, Ruelene®
CAS No.
299-86-5
RTECS No.
TB3850000
DOT ID & Guide
Formula
C12H19ClNO3P
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 5 mg/m3 ST 20 mg/m3
OSHA PEL
†: none
Measurement Methods

NIOSH PV2015
Physical Description
White, crystalline solid in pure form. [pesticide] [Note: Commercial product is a yellow oil.]
MW:
291.7
BP:
Decomposes		 MLT: 140°F
Sol:
Insoluble		 VP(243°F): 0.01 mmHg
IP:
?
Sp.Gr:
1.16
Fl.P:
?
UEL:
?
LEL:
?
Combustible Solid
Incompatibilities & Reactivities
Strongly alkaline & strongly acidic media [Note: Unstable over long periods in aqueous preparations or above 140°F.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; wheezing, dyspnea (breathing difficulty); blurred vision, lacrimation (discharge of tears); sweating; abdominal cramps, diarrhea, nausea, anorexia
Target Organs
Eyes, skin, respiratory system, blood cholinesterase
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 1143