1-Hydroxy-1H-benzotriazole hydrate 1-Hydroxybenzotriazole 1-Hydroxybenzotriazole hydrate 1H-Benzotriazole, 1-hydroxy- 1H-Benzotriazole, 1-hydroxy-, hydrate 2592-95-2 4-26-00-00095 (Beilstein Handbook Reference) 40150-21-8 63307-62-0 BRN 0004515 Benzazimidol hydrate CCRIS 2605 EINECS 219-989-7 N-Hydroxybenzotriazole hydrate