NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Propoxur

CAS
114-26-1

CH3NHCOOC6H4OCH(CH3)2

RTECS
FC3150000
Synonyms & Trade Names

Aprocarb®; o-Isopropoxyphenyl-N-methylcarbamate; N-Methyl-2-isopropoxyphenyl-carbamate
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 0.5 mg/m3
OSHA PEL: none
IDLH
N.D. See: IDLH INDEX
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 200F.
Incompatibilities & Reactivities

Strong oxidizers, alkalis [Note: Emits highly toxic methyl isocyanate fumes when heated to decomposition.]
Measurement Methods
NIOSH 5601; OSHA PV2007
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
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
Not available.
Important additional information about respirator selection
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
See also: INTRODUCTION   See ICSC CARD: 0191