NIOSH Pocket Guide to Chemical Hazards

Allyl propyl disulfide

CAS 2179-59-1


RTECS JO0350000
Synonyms & Trade Names
4,5-Dithia-1-octene; Onion oil; 2-Propenyl propyl disulfide; Propyl allyl disulfide
DOT ID & Guide


NIOSH REL: TWA 2 ppm (12 mg/m3) ST 3 ppm (18 mg/m3)
OSHA PEL†: TWA 2 ppm (12 mg/m3)
IDLH N.D. See: IDLH INDEX Conversion 1 ppm = 6.07 mg/m3
Physical Description
Pale-yellow liquid with a strong & irritating onion-like odor. [Note: The chief volatile component of onion oil.]
MW: 148.3
BP: ?
FRZ: 5°F
Sol: Insoluble
VP: ?
IP: ?

Sp.Gr(59°F): 0.93
Fl.P: ?
UEL: ?
LEL: ?

Combustible Liquid
Incompatibilities & Reactivities
Measurement Methods
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: No recommendation
Eyes: Prevent eye contact
Wash skin: No recommendation
Remove: When wet or contaminated
Change: No recommendation

First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Important additional information about respirator selection
Respirator Recommendations Not available.
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, nose, respiratory system; lacrimation (discharge of tears)
Target Organs Eyes, respiratory system
See also: INTRODUCTION   See ICSC CARD: 1422