Caswell No. 833, SALICYLANILIDE,3,3',4',5-TETRACHLORO, Tetrachlorosalicylanilide, 3,3′,4′,5-Tetrachlorosalicylanilide, Benzamide,3,5-dichloro-N-(3,4-dichlorophenyl)-2-hydroxy, 3,5-dichloro-N-(3,4-dichlorophenyl)-2-hydroxybenzamide, 3,3',4',5-Tetrachlorosalicylanilide, 3,5-Dichlorosalicyl 3,4-dichloroanilide, Benzamide, 3,5-dichloro-N-(3,4-dichlorophenyl)-2-hydroxy-, TCSA, Irgasan BS-200, 3,5-dichloro-N-(3,4-dichloro-phenyl)-2-hydroxy-benzamide, 3,5,3',4'-tetrachlorosalicylanilide