6-Cl-HOBt, 1-Hydroxy-6-chloro-benzotriazole [26198-19-6]

1-Hydroxy-6-chloro-benzotriazoleMolecular Weight: 169.576-Cl-HOBt is an alternative to HOBt. The chlorine atom attached to the ring increases the acidity and the effectiveness as a leaving group of 6-Cl-HOBt compared to HOBt. Like HOBt, 6-Cl-HOBt efficiently suppresses racemization during coupling. Cl-HOBt can be used in place of HOBt with equal or superior results.