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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2009-07-25 00:09:08 UTC
Update Date2021-10-13 05:36:55 UTC
HMDB IDHMDB0012881
Secondary Accession Numbers
  • HMDB12881
Metabolite Identification
Common NameAcetylcarnosine
DescriptionN-Acetylcarnosine (NAC) is a naturally-occurring compound chemically related to the dipeptide carnosine. Its molecular structure is similar to carnosine with the exception that it carries an additional acetyl group. This makes NAC a more stable molecule which is not easily destroyed by carnosinase, an enzyme that breaks down carnosine to its constituent amino acids, beta-alanine and histidine. NAC is a free-radical scavenger and is particularly active against lipid peroxidation in the different parts of the lens in the eye. It is the active ingredient of eye drops used in order to prevent or treat cataract.
Structure
Thumb
Synonyms
ValueSource
N-AcetylcarnosineHMDB
(2R)-2-({1-hydroxy-3-[(1-hydroxyethylidene)amino]propylidene}amino)-3-(1H-imidazol-5-yl)propanoateGenerator
Chemical FormulaC11H16N4O4
Average Molecular Weight268.2691
Monoisotopic Molecular Weight268.11715502
IUPAC Name(2R)-2-(3-acetamidopropanamido)-3-(1H-imidazol-5-yl)propanoic acid
Traditional Name(2R)-2-(3-acetamidopropanamido)-3-(3H-imidazol-4-yl)propanoic acid
CAS Registry Number56353-15-2
SMILES
CC(=O)NCCC(=O)N[C@H](CC1=CN=CN1)C(O)=O
InChI Identifier
InChI=1S/C11H16N4O4/c1-7(16)13-3-2-10(17)15-9(11(18)19)4-8-5-12-6-14-8/h5-6,9H,2-4H2,1H3,(H,12,14)(H,13,16)(H,15,17)(H,18,19)/t9-/m1/s1
InChI KeyBKAYIFDRRZZKNF-SECBINFHSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as hybrid peptides. Hybrid peptides are compounds containing at least two different types of amino acids (alpha, beta, gamma, delta) linked to each other through a peptide bond.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassPeptidomimetics
Sub ClassHybrid peptides
Direct ParentHybrid peptides
Alternative Parents
Substituents
  • Hybrid peptide
  • Histidine or derivatives
  • N-acyl-alpha-amino acid
  • N-acyl-alpha amino acid or derivatives
  • Beta amino acid or derivatives
  • Alpha-amino acid or derivatives
  • Imidazolyl carboxylic acid derivative
  • Azole
  • Heteroaromatic compound
  • Imidazole
  • Acetamide
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Carboxylic acid derivative
  • Carboxylic acid
  • Azacycle
  • Organoheterocyclic compound
  • Monocarboxylic acid or derivatives
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organic oxide
  • Organic oxygen compound
  • Organopnictogen compound
  • Carbonyl group
  • Organooxygen compound
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility36130 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
Predicted Chromatographic Properties
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB029196
KNApSAcK IDNot Available
Chemspider ID8396518
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkAcetylcarnosine
METLIN IDNot Available
PubChem Compound10221026
PDB IDNot Available
ChEBI ID172509
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1703291
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available