Mustard Gas

**Definition:** Severe irritant and vesicant of skin, eyes, and lungs. It may cause blindness and lethal lung edema and was formerly used as a war gas. The substance has been proposed as a cytostatic and for treatment of psoriasis. It has been listed as a known carcinogen in the Fourth Annual Report on Carcinogens (NTP-85-002, 1985) (Merck, 11th ed).

**Tree numbers:** - D02.455.526.728.468

**Synonyms:** - Di-2-chloroethyl Sulfide - Dichlorodiethyl Sulfide - Mustardgas - Bis(beta-chloroethyl) Sulfide - Yellow Cross Liquid - Yperite - Sulfur Mustard