1-Hydroxy-7-azabenzotriazole

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1-Hydroxy-7-azabenzotriazole
Skeletal formula of HOAt
Space-filling model of the HOAt molecule
Names
Systematic IUPAC name
3-Hydroxytriazolo[4,5-b]pyridine
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.122.938
Properties
C5H4N4O
Molar mass 136.11 g·mol−1
Hazards
Toxic T
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

1-Hydroxy-7-azabenzotriazole, commonly abbreviated HOAt, is a triazole used as a peptide coupling reagent. It suppresses the loss of chirality.