Isoniazid

CAS Registry Number®

54-85-3

CAS Name

Isoniazid

Molecular Formula

C6H7N3O

Molecular Mass

137.14

Cite this Page

Isoniazid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=54-85-3 (retrieved 2024-11-05) (CAS RN: 54-85-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    170-171 °C
  • Melting Point (2)

    171.4 °C
  • Density (3)

    1.420 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C6H7N3O/c7-9-6(10)5-1-3-8-4-2-5/h1-4H,7H2,(H,9,10)

InChIKey

InChIKey=QRXWMOHMRWLFEY-UHFFFAOYSA-N

SMILES

C(NN)(=O)C=1C=CN=CC1

Canonical SMILES

O=C(NN)C=1C=CN=CC1

Other Names for this Substance

  • 4-Pyridinecarboxylic acid, hydrazide
  • Isonicotinic acid hydrazide
  • FSR 3
  • 5015 R.P.
  • Armazide

Deleted or Replaced CAS Registry Numbers

7640-37-1, 37271-10-6, 41466-07-3, 62229-51-0

CAS INSIGHTSTM
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