1,2-Dihydro-5-nitro-3H-1,2,4-triazol-3-one

CAS Registry Number®

932-64-9

CAS Name

1,2-Dihydro-5-nitro-3H-1,2,4-triazol-3-one

Molecular Formula

C2H2N4O3

Molecular Mass

130.06

Cite this Page

1,2-Dihydro-5-nitro-3H-1,2,4-triazol-3-one.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=932-64-9 (retrieved 2025-05-17) (CAS RN: 932-64-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    265-268 °C (decomp)

  • Density (2)

    1.92 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C2H2N4O3/c7-2-3-1(4-5-2)6(8)9/h(H2,3,4,5,7)

InChIKey

InChIKey=QJTIRVUEVSKJTK-UHFFFAOYSA-N

SMILES

N(=O)(=O)C=1NC(=O)NN1

Canonical SMILES

O=C1NN=C(N1)N(=O)=O

Other Names for this Substance

  • 3H-1,2,4-Triazol-3-one, 1,2-dihydro-5-nitro-
  • Δ2-1,2,4-Triazolin-5-one, 3-nitro-
  • 1,2-Dihydro-5-nitro-3H-1,2,4-triazol-3-one
  • 5-Oxo-3-nitro-1,2,4-triazole
  • NTO

View All

Deleted or Replaced CAS Registry Numbers

127173-66-4, 132051-98-0, 137803-13-5, 42297-38-1, 143983-99-7, 182579-52-8

CAS INSIGHTSTM
Someone sitting at a desk watching a webinar