CAS 165542-15-4PubChem CID 12011795
5-Hydroxyectoine
5-hydroxyectoine is a carboxamidine heterocycle which is obtained by formal condensation of 4-amino-L-allothreonine with acetic acid. It is a monocarboxylic acid, a carboxamidine, a secondary alcohol and a member of 1,4,5,6-tetrahydropyrimidines. It is a conjugate acid of a 5-hydroxyectoinate. It is a tautomer of a 5-hydroxyectoine zwitterion. — ChEBI
- IUPAC name
- (5S,6S)-5-hydroxy-2-methyl-1,4,5,6-tetrahydropyrimidine-6-carboxylic acid
- Molecular formula
- C6H10N2O3
- Molecular weight
- 158.16 g/mol
- Exact mass
- 158.06914219 Da
- XLogP3
- -1.2
- Topological polar surface area
- 81.9 Ų
- Hydrogen-bond donors
- 3
- Hydrogen-bond acceptors
- 4
- Covalent units
- 1
- Defined stereocentres
- 2
Also known as
(4S,5S)-5-Hydroxy-2-methyl-1,4,5,6-tetrahydropyrimidine-4-carboxylic acidCHEBI:49432RefChem:789461(4S,5S)-5-hydroxy-2-methyl-1,4,5,6-tetrahydropyrimidin-3-ium-4-carboxylate(5S,6S)-5-hydroxy-2-methyl-1,4,5,6-tetrahydropyrimidin-1-ium-6-carboxylateHydroxyectoinHydroxyectoinebeta-hydroxyectoine
16 more reported names
Thp(A)4-pyrimidinecarboxylic acid, 1,4,5,6-tetrahydro-5-hydroxy-2-methyl-, (4S,5S)-Ronacare hydroxyectoinCIJ7YN252E(S,S)-.BETA.-HYDROXYECTOINE(4S,5S)-2-methyl-4-carboxy-5-hydroxy-3,4,5,6-tetrahydropyrimidine(S,S)-1,4,5,6-Tetrahydro-5-hydroxy-2-methyl-4-pyrimidinecarboxylic acid4-Pyrimidinecarboxylic acid, 1,4,5,6-tetrahydro-5-hydroxy-2-methyl-, (S-(R*,R*))-Hydroxyectoine, primary pharmaceutical reference standard(4S,5S)-5-hydroxy-2-methyl-3,4,5,6-tetrahydropyrimidine-4-carboxylic acid(S,S)-2-methyl-5-hydroxy-1,4,5,6-tetrahydropyrimidine-4-carboxylic acidUNII-CIJ7YN252E(S,S)-beta-HydroxyectoineHydroxy ectoinePyrosHydroxy ection
External database identifiers
- ChEBI:CHEBI:49432
- ChEMBL:CHEMBL1230488
- EPA DTXSID:DTXSID80167963
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.