DL-Histidine

C6H9N3O2CAS 4998-57-6155.16 g/mol

H2NNHNOOH
Carboxylic acidPrimary amine

Properties

Molecular formula
C6H9N3O2
Molar mass
155.16 g/mol
Exact mass
155.0695 Da
Melting point
828 °C
logP
-0.64Crippen estimate
Polar surface area
92.0 Ų
H-bond donors / acceptors
3 / 3
Rotatable bonds
3

Hazards

Not classified as hazardous under GHS by 2 ECHA notifiers. Aggregated from 2 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Identifiers

CAS number
4998-57-6
SMILES
NC(Cc1cnc[nH]1)C(=O)O
InChIKey
HNDVDQJCIGZPNO-UHFFFAOYSA-N
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)

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Type any one amount. The others follow from the molar mass.

Names and synonyms

7 names
  • Histidine
  • Histidine, DL-
  • (±)-Histidine
  • 1H-Imidazole-4-alanine
  • 2-Amino-3-(1H-imidazol-5-yl)propanoic acid
  • 2-Amino-3-(5-imidazolyl)propanoic acid
  • 2-Amino-3-(1H-imidazol-4-yl)propanoic acid

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Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Same formula

Elsewhere