# NIOSH Pocket Guide to Chemical Hazards
Disulfoton | CAS 298-04-4
C8H19O2PS3 | RTECS TD9275000
Synonyms & Trade Names O,O-Diethyl S-2-(ethylthio)-ethyl phosphorodithioate; Di-Syston®; Thiodemeton | DOT ID & Guide 2783 152
Exposure Limits | NIOSH REL: TWA 0.1 mg/m3 [skin]
OSHA PEL†: none
IDLH N.D. | Conversion
Physical Description Oily, colorless to yellow liquid with a characteristic, sulfur odor. [insecticide] [Note: Technical product is a brown liquid.]
MW: 274.4 | BP: ? | FRZ: >-13°F | Sol(73°F): 0.003%
VP: 0.0002 mmHg | IP: ? |  | Sp.Gr: 1.14
Fl.P: >180°F | UEL: ? | LEL: ? |
Combustible Liquid, but will not ignite easily.
Incompatibilities & Reactivities Alkalis
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: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap flush 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 Irritation eyes, skin; nausea, vomiting, abdominal cramps, diarrhea, salivation; headache, dizziness, lassitude (weakness, exhaustion); rhinorrhea (discharge of thin mucus), chest tightness; blurred vision, miosis; cardiac irregularities; muscle fasciculation; dyspnea (breathing difficulty); eye, skin burns
Target Organs Eyes, skin, respiratory system, central nervous system, cardiovascular system, blood cholinesterase
See also: INTRODUCTION