Pyrazine

CAS Registry Number®

290-37-9

CAS Name

Pyrazine

Molecular Formula

C4H4N2

Molecular Mass

80.09

Cite this Page

Pyrazine.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=290-37-9 (retrieved 2025-03-28) (CAS RN: 290-37-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    115.5-115.8 °C @ Press: 755 Torr

  • Melting Point (2)

    55 °C

  • Density (3)

    1.031 g/cm³ (solid)

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H4N2/c1-2-6-4-3-5-1/h1-4H

InChIKey

InChIKey=KYQCOXFCLRTKLS-UHFFFAOYSA-N

SMILES

C=1C=NC=CN1

Canonical SMILES

N=1C=CN=CC1

Other Names for this Substance

  • Pyrazine
  • 1,4-Diazabenzene
  • 1,4-Diazine
  • Paradiazine
  • Piazine

View All

Deleted or Replaced CAS Registry Numbers

1339899-95-4

CAS INSIGHTSTM
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