Return to Results

L-Histidine

CAS Registry Number®

71-00-1

CAS Name

L-Histidine

Molecular Formula

C6H9N3O2

Molecular Mass

155.15

Cite this Page

L-Histidine.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=71-00-1 (retrieved 2024-12-25) (CAS RN: 71-00-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    287 °C (decomp)

  • Density (2)

    1.412 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1

InChIKey

InChIKey=HNDVDQJCIGZPNO-YFKPBYRVSA-N

SMILES

C([C@@H](C(O)=O)N)C1=CN=CN1

Canonical SMILES

O=C(O)C(N)CC1=CN=CN1

Other Names for this Substance

  • L-Histidine
  • Histidine, L-
  • Histidine
  • 1H-Imidazole-4-propanoic acid, α-amino-, (S)-
  • (S)-4-(2-Amino-2-carboxyethyl)imidazole

View All

Deleted or Replaced CAS Registry Numbers

150-35-6, 7006-35-1, 35479-49-3, 35558-59-9, 45955-20-2, 54166-13-1, 736075-03-9, 155304-24-8

CAS INSIGHTSTM
Pile of blue, green, and white color of capsule pills with modern design light.