mustard gas, sulphur mustard, sulfur mustard, bis(2-chlorethyl) sulphide, bis(2‐chloroethyl)sulfide, yprite
a colourless oily liquid whose vapour causes severe irritation and blistering of the skin, used in chemical warfare, originally at Ypres during the First World War (1914–18), väga mürgine õlitaoline lõhnata ja värvuseta vedelik (tehniline ipriit on sinepi lõhnaga tumepruun vedelik), keemiline ründeaine, a chemical warfare agent, C4H8Cl2S; r.d. 1.27; m.p. 14.4°C; b.p. 217°C
