GlobeChemie The Chemical Planet | 1-Hydroxybenzotriazole Monohydrate Sinnar
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Part Number 10624
Product Name 1-Hydroxybenzotriazole Monohydrate
Alternate Name 1-HOBT Monohydrate
Cas Number 123333-53-9
Molecular Formula C6H7N3O2
Molecular Weight 153.12
Standard Packing 50KGS HMHDPE DRUMS
Packing Group I
UN Number 0
Hazardous 4.1
HSN Code 29331990
Download MSDS

Coupling Reagents, Used in Peptide Chemistry, Sitagliptin, Atazanavir. 

HOBt is also used for the synthesis of amides from carboxylic acids aside from amino acids



Specification Limits


White to Off White Crystalline Powder


Soluble in Methanol

Identification by HPLC

The Retention time of standard Sample Shall match with the test sample

Water Content

In between 10.00% to 14.00%

Melting Range

In between 150oC to 160oC

Assay By Titration

NLT 98.00%