Synonyms:

1H-1,2,3-benzotriazol-1-ol monohydrate;1-HYDROXYBENZOTRIAZOLE N-HYDRATE;1-HYDROXYBENZOTRIAZOL MONOHYDRATE;1,2,3-BENZOTRIAZOL-1-OL MONOHYDRATE;1-HYDROXY-1,2,3-BENZOTRIAZOLE (HOBT);HOBt hydrate;1,2,3-Benzotriazol-1-ol
HOBt;1-Hydroxybenzotriazole 

Canonical SMILES: C1=CC=C2C(=C1)N=NN2O.O

Melting Point: 155-158 °C(lit.)

Hazard Codes: F

Risk Statements:  5-11

Safety Statements: 15-16-35

Transport: UN 3380 4.1/PG 1

HazardClass: 4.1