Skip Navigation
ChemIDplus A TOXNET DATABASE LiteBrowseAdvanced

Substance Name: Ornithine [INN]
RN: 70-26-8
UNII: E524N2IXA3
InChIKey: AHLPHDHHMVZTML-BYPYZUCNSA-N

Note

  • An amino acid produced in the urea cycle by the splitting off of urea from arginine.

Classification Code

  • Mutation Data

Molecular Formula

  • C5-H12-N2-O2

Molecular Weight

  • 132.1618
 
* denotes mobile formatted website

Links to Resources


Search for this InChIKey on the Web

Names and Synonyms

Name of Substance

  • Ornithine
  • Ornithine [INN]

MeSH Heading

  • Ornithine

Synonyms

  • (S)-2,5-Diaminopentanoic acid
  • (S)-alpha,delta-Diaminovaleric acid
  • (S)-Ornithine
  • 4-04-00-02644 (Beilstein Handbook Reference)
  • BRN 1722298
  • EINECS 200-731-7
  • L(-)-Ornithine
  • L-Norvaline, 5-amino-
  • Ornithine
  • Ornithinum
  • Ornithinum [Latin]
  • Ornitina
  • Ornitina [Spanish]
  • Pentanoic acid, 2,5-diamino-, (S)-
  • UNII-E524N2IXA3

Systematic Names

  • L-Ornithine
  • Ornithine
  • Ornithine (VAN)

Registry Numbers

CAS Registry Number

  • 70-26-8

FDA UNII

  • E524N2IXA3

Other Registry Numbers

  • 204201-13-8
  • 410523-46-5
  • 7006-33-9

System Generated Number

  • 0000070268

Structure Descriptors

InChI

1S/C5H12N2O2/c6-3-1-2-4(7)5(8)9/h4H,1-3,6-7H2,(H,8,9)/t4-/m0/s1

InChIKey

AHLPHDHHMVZTML-BYPYZUCNSA-N

Smiles

[C@@H](C(=O)O)(CCCN)N

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 140 deg C   EXP
pKa Dissociation Constant 1.94 (none) 25 EXP
log P (octanol-water) -4.22E+00 (none)   EXP
Water Solubility 1.00E+06 mg/L 25 EST
Vapor Pressure 1.11E-09 mm Hg 25 EST
Henry's Law Constant 2.71E-13 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 7.27E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.