Record Information
Creation date2015-05-07 20:55:50 UTC
Update date2019-11-26 03:22:07 UTC
Primary IDFDB031064
Secondary Accession Numbers
  • FDB004955
  • FDB023094
Chemical Information
FooDB NameO-acetyl-L-serine
DescriptionO-acetyl-l-serine, also known as L-serine, acetate (ester) or (2s)-3-acetyloxy-2-aminopropanoate, is a member of the class of compounds known as L-alpha-amino acids. L-alpha-amino acids are alpha amino acids which have the L-configuration of the alpha-carbon atom. O-acetyl-l-serine is soluble (in water) and a moderately acidic compound (based on its pKa). O-acetyl-l-serine can be found in a number of food items such as sorrel, summer savory, purslane, and cherimoya, which makes O-acetyl-l-serine a potential biomarker for the consumption of these food products. O-acetyl-l-serine can be found primarily in blood and urine, as well as in human prostate tissue. O-acetyl-l-serine exists in all living species, ranging from bacteria to humans.
CAS NumberNot Available
L-Serine, acetate (ester)ChEBI
L-Serine, acetic acid (ester)Generator
O-Acetylserine hydrobromide, (D)-isomerHMDB
O-Acetylserine, (L)-isomerHMDB
Serine acetate esterHMDB
Predicted Properties
Water Solubility174 g/LALOGPS
pKa (Strongest Acidic)1.86ChemAxon
pKa (Strongest Basic)8.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area89.62 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity31.19 m³·mol⁻¹ChemAxon
Polarizability13.44 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC5H9NO4
IUPAC name(2S)-3-(acetyloxy)-2-aminopropanoic acid
InChI IdentifierInChI=1S/C5H9NO4/c1-3(7)10-2-4(6)5(8)9/h4H,2,6H2,1H3,(H,8,9)/t4-/m0/s1
Isomeric SMILESCC(=O)OC[C@H](N)C(O)=O
Average Molecular Weight147.1293
Monoisotopic Molecular Weight147.053157781
Description Belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentL-alpha-amino acids
Alternative Parents
  • L-alpha-amino acid
  • Dicarboxylic acid or derivatives
  • Carboxylic acid ester
  • Amino acid
  • Carboxylic acid
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Primary aliphatic amine
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Amine
  • Organic oxide
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors

Route of exposure:


Biological location:


Industrial application:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
TypeDescriptionSplash KeyView
GC-MSO-Acetyl-serine, 2 TMS, GC-MS Spectrumsplash10-01c0-0900000000-cbac2ae436dcca0d0251Spectrum
GC-MSO-Acetyl-serine, 2 TMS, GC-MS Spectrumsplash10-01c0-0900000000-7c5ef6cc55e1a01984afSpectrum
GC-MSO-Acetyl-serine, 2 TMS, GC-MS Spectrumsplash10-00di-6900000000-f2863fb0291664c5ca21Spectrum
GC-MSO-Acetyl-serine, 2 TMS, GC-MS Spectrumsplash10-00yi-0910000000-4eb5131c64279fbabbfbSpectrum
GC-MSO-Acetyl-serine, non-derivatized, GC-MS Spectrumsplash10-01c0-0900000000-cbac2ae436dcca0d0251Spectrum
GC-MSO-Acetyl-serine, non-derivatized, GC-MS Spectrumsplash10-01c0-0900000000-7c5ef6cc55e1a01984afSpectrum
GC-MSO-Acetyl-serine, non-derivatized, GC-MS Spectrumsplash10-00di-6900000000-f2863fb0291664c5ca21Spectrum
GC-MSO-Acetyl-serine, non-derivatized, GC-MS Spectrumsplash10-00yi-0910000000-4eb5131c64279fbabbfbSpectrum
Predicted GC-MSO-Acetyl-serine, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0006-9000000000-1a24fb3faa274e72fcc5Spectrum
Predicted GC-MSO-Acetyl-serine, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positivesplash10-006x-9300000000-048d27b5feab5a974f8dSpectrum
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-052r-9700000000-798191f65808f670b0b8Spectrum
MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , positivesplash10-052r-9700000000-798191f65808f670b0b8Spectrum
MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF 35V, negativesplash10-0ai0-9000000000-48b5a588a0a890044838Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0uea-3900000000-ef46289d46aa69d40d48Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udr-9700000000-221b830dc83fdf079527Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-52a79cff992a3a467f06Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-6900000000-4e0de865dfcc2446fe14Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-9300000000-5a3f4b66b56fbaca505cSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4l-9000000000-123b2507eee8f6a9f064Spectrum
NMRNot Available
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference