NIOSH Pocket Guide to Chemical Hazards

Propoxur CAS 114-26-1
Synonyms & Trade Names
Aprocarb®, o-Isopropoxyphenyl-N-methylcarbamate, N-Methyl-2-isopropoxyphenyl-carbamate
DOT ID & Guide
NIOSH REL: TWA 0.5 mg/m3
OSHA PEL†: none
IDLH N.D. Conversion
Physical Description
White to tan, crystalline powder with a faint, characteristic odor. [insecticide]
MW: 209.3
BP: Decomposes
MLT: 187-197°F
Sol: 0.2%
VP: 0.000007 mmHg
IP: ?

Sp.Gr: ?
Fl.P: >300°F
UEL: ?
LEL: ?

Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities
Strong oxidizers, alkalis [Note: Emits highly toxic methyl isocyanate fumes when heated to decomposition.]
Measurement Methods
NIOSH 5601; OSHA PV2007
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: Daily
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 To be added later
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Miosis, blurred vision; sweating, salivation; abdominal cramps, nausea, diarrhea, vomiting; headache, lassitude (weakness, exhaustion), muscle twitching
Target Organs central nervous system, liver, kidneys, gastrointestinal tract, blood cholinesterase