Histamine

CAS Registry Number®

51-45-6

CAS Name

Histamine

Molecular Formula

C5H9N3

Molecular Mass

111.15

Cite this Page

Histamine.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=51-45-6 (retrieved 2025-05-12) (CAS RN: 51-45-6).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    209-210 °C @ Press: 18 Torr

  • Melting Point (1)

    83-84 °C

  • Density (2)

    1.1933 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C5H9N3/c6-2-1-5-3-7-4-8-5/h3-4H,1-2,6H2,(H,7,8)

InChIKey

InChIKey=NTYJJOPFIAHURM-UHFFFAOYSA-N

SMILES

C(CN)C1=CN=CN1

Canonical SMILES

N1=CNC(=C1)CCN

Other Names for this Substance

  • 1H-Imidazole-5-ethanamine
  • Histamine
  • 1H-Imidazole-4-ethanamine
  • Eramin
  • Ergamine

View All

Deleted or Replaced CAS Registry Numbers

64422-25-9, 924364-91-0, 1416954-63-6

CAS INSIGHTSTM
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