4-Hydroxybenzotriazole

CAS Registry Number®

26725-51-9

CAS Name

4-Hydroxybenzotriazole

Molecular Formula

C6H5N3O

Molecular Mass

135.12

Cite this Page

4-Hydroxybenzotriazole.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=26725-51-9 (retrieved 2024-11-23) (CAS RN: 26725-51-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    215.5-217.5 °C

  • Density (2)

    1.138 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C6H5N3O/c10-5-3-1-2-4-6(5)8-9-7-4/h1-3,10H,(H,7,8,9)

InChIKey

InChIKey=JMTMSDXUXJISAY-UHFFFAOYSA-N

SMILES

OC1=C2C(=CC=C1)N=NN2

Canonical SMILES

OC1=CC=CC=2N=NNC12

Other Names for this Substance

  • 1H-Benzotriazol-7-ol
  • 1H-Benzotriazol-4-ol
  • Benzotriazol-4-ol
  • 4-Hydroxybenzotriazole
  • 4-Hydroxy-1H-benzotriazole

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Deleted or Replaced CAS Registry Numbers

30922-31-7

CAS INSIGHTSTM
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