1H-Pyrazolo[3,4-c]pyridazine

CAS Registry Number®

271-75-0

CAS Name

1H-Pyrazolo[3,4-c]pyridazine

Molecular Formula

C5H4N4

Molecular Mass

120.11

Cite this Page

1H-Pyrazolo[3,4-c]pyridazine.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=271-75-0 (retrieved 2025-06-27) (CAS RN: 271-75-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Other Names and Identifiers

InChI

InChI=1S/C5H4N4/c1-2-6-8-5-4(1)3-7-9-5/h1-3H,(H,7,8,9)

InChIKey

InChIKey=VHQVCXSOAGLPRG-UHFFFAOYSA-N

SMILES

C1=2C(NN=C1)=NN=CC2

Canonical SMILES

N1=NC=2NN=CC2C=C1

Other Names for this Substance

  • 1H-Pyrazolo[3,4-c]pyridazine
  • 6,7-Diaza-1H-indazole

CAS INSIGHTSTM
Purple and red filaments produced by electrostatic discharge inside a plasma ball.