略語大辞典 [Bio] 29 BCS butyl 2-chloroethyl sulfide 硫化ブチルクロロエチル. 毒ガス. butyl 2-chloroethyl sulfide; a toxic chemical; a monofunctional sulfur mustard; [Bio:Chem]. 丸善「略語大辞典」JLogosID : 11864682