1750-45-4 2(3H)-Benzoxazolone, 5-chloro-6-hydroxy- (9CI) 2-BENZOXAZOLINONE, 5-CHLORO-6-HYDROXY- 5-Chloro-6-hydroxy-2-benzoxazolinone 6-Hydroxychlorzoxazone BRN 0911674 NSC 24955