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1-Hydroxybenzotriazole hydrate

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1-Hydroxybenzotriazole hydrate Basic information

Product Name:
1-Hydroxybenzotriazole hydrate
Synonyms:
  • HOBTM
  • HOBT HYDRATE
  • HOBT H2O
  • 1H-1,2,3-benzotriazol-1-ol hydrate solution
  • 1-HYDROXYBENZOTRIAZOLE 15 WT. % SOLUTI&
  • 1H-Benzo[d][1,2,3]triazol-1-ol xhydrate
  • 1H-benzo[d][1,2,3]triazol-1-ol hydrate
  • HOBT.H2O1-Hydroxybenzotriazole hydrate
CAS:
123333-53-9
MF:
C6H7N3O2
MW:
153.14
EINECS:
602-929-2
Product Categories:
  • Heterocyclic Compounds
  • Peptide
  • FINE Chemical & INTERMEDIATES
  • Heterocycles
  • Bases & Related Reagents
  • Nucleotides
  • 123333-53-9
Mol File:
123333-53-9.mol
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1-Hydroxybenzotriazole hydrate Chemical Properties

Melting point:
155-158 °C(lit.)
Boiling point:
248.8°C (rough estimate)
Density 
1.065 g/cm
refractive index 
1.6910 (estimate)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
DMF: 100 mg/mL, clear
form 
Solid
color 
White to Off-White
Water Solubility 
slightly soluble
BRN 
4515
Stability:
Hygroscopic
CAS DataBase Reference
123333-53-9(CAS DataBase Reference)
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Safety Information

Hazard Codes 
F
Risk Statements 
5-11-R5-R11-44-1
Safety Statements 
15-16-35-7/9-33-S7/9-S33-S16-60-37-26
RIDADR 
UN 3380 4.1/PG 1
WGK Germany 
-
4.10-8
Hazard Note 
Highly Flammable
HS Code 
29339980

MSDS

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1-Hydroxybenzotriazole hydrate Usage And Synthesis

Chemical Properties

White to off-white powder

Uses

1-Hydroxybenzotriazole hydrate can be used as a condensation reagent to prepare:

  • Poly-γ-glutamic acid methyl ester from a dimer of γ-glutamic acid.
  • Oxadiazoles via cyclo condensation of amidoximes with trifluoroacetic anhydride or benzoic acid derivatives.

Uses

A common additive for peptide coupling.

Uses

additive for oligonucleotide couplings and in racemization-free peptide couplings

General Description

1-Hydroxybenzotriazole is a coupling reagent used to synthesize amides by the condensation reaction between the activated ester/acid and the amino group of protected amino acids. It is also used as a racemization suppressor during peptide synthesis.

1-Hydroxybenzotriazole hydrateSupplier

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