# NIOSH Pocket Guide to Chemical Hazards
Endosulfan | CAS 115-29-7
C9H6Cl6O3S | RTECS RB9275000
Synonyms & Trade Names Benzoepin; Endosulphan; 6,7,8,9,10-Hexachloro-1,5,5a,6,9,9a-hexachloro-6,9-methano- 2,4,3-benzo-dioxathiepin-3-oxide; Thiodan® | DOT ID & Guide 2761 151
Exposure Limits | NIOSH REL: TWA 0.1 mg/m3 [skin]
OSHA PEL†: none
IDLH N.D. | Conversion
Physical Description Brown crystals with a slight, sulfur dioxide odor. [insecticide] [Note: Technical product is a tan, waxy, isomer mixture.]
MW: 406.9 | BP: Decomposes | MLT: 223°F | Sol: 0.00001%
VP(77°F): 0.00001 mmHg | IP: ? |  | Sp.Gr: 1.74
Fl.P: NA | UEL: NA | LEL: NA |
Noncombustible Solid, but may be dissolved in flammable liquids.
Incompatibilities & Reactivities Alkalis, acids, water [Note: Corrosive to iron. Hydrolyzes slowly on contact with water or decomposes in presence of alkalis and acids to form sulfur dioxide.]
Measurement Methods OSHA PV2023
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 skin; nausea, confusion, agitation, flushing, dry mouth, tremor, convulsions, headache; in animals: kidney, liver injury; decreased testis weight
Target Organs Skin, central nervous system, liver, kidneys, reproductive system
See also: INTRODUCTION