Record Information
Version1.0
Creation Date2016-09-30 22:36:22 UTC
Update Date2020-04-22 15:05:15 UTC
BMDB IDBMDB0000773
Secondary Accession Numbers
  • BMDB00773
Metabolite Identification
Common NameN-Acetyl-a-neuraminic acid
DescriptionN-Acetyl-a-neuraminic acid, also known as alpha-neu5ac or O-sialIC ACID, belongs to the class of organic compounds known as n-acylneuraminic acids. These are neuraminic acids carrying an N-acyl substituent. N-Acetyl-a-neuraminic acid exists in all living organisms, ranging from bacteria to humans. Based on a literature review a significant number of articles have been published on N-Acetyl-a-neuraminic acid.
Structure
Thumb
Synonyms
ValueSource
alpha-Neu5acChEBI
O-SIALIC ACIDChEBI
WURCS=2.0/1,1,0/[aad21122h-2a_2-6_5*ncc/3=o]/1/ChEBI
a-Neu5acGenerator
Α-neu5acGenerator
O-SIALateGenerator
N-Acetyl-a-neuraminateGenerator
5-(Acetylamino)-3,5-dideoxy-D-glycero-a-D-galacto-2-nonulopyranosonateHMDB
5-(Acetylamino)-3,5-dideoxy-D-glycero-a-D-galacto-2-nonulopyranosonic acidHMDB
5-(Acetylamino)-3,5-dideoxy-delta-glycero-alpha-delta-galacto-2-nonulopyranosonateHMDB
5-(Acetylamino)-3,5-dideoxy-delta-glycero-alpha-delta-galacto-2-nonulopyranosonic acidHMDB
5-Acetamido-3,5-dideoxy-a-D-glycero-D-galacto-nonulopyranosonateHMDB
5-Acetamido-3,5-dideoxy-a-D-glycero-D-galacto-nonulopyranosonic acidHMDB
5-Acetamido-3,5-dideoxy-alpha-delta-glycero-delta-galacto-nonulopyranosonateHMDB
5-Acetamido-3,5-dideoxy-alpha-delta-glycero-delta-galacto-nonulopyranosonic acidHMDB
N-Acetyl-a-D-neuraminateHMDB
N-Acetyl-a-D-neuraminic acidHMDB
N-Acetyl-alpha-delta-neuraminateHMDB
N-Acetyl-alpha-delta-neuraminic acidHMDB
N-Acetyl-alpha-neuraminateHMDB
PolySiaHMDB
Polysialic acidHMDB
N-Acetyl-alpha-neuraminic acidHMDB
N-Acetyl-α-neuraminateHMDB
N-Acetyl-α-neuraminic acidHMDB
Acid, N-acetylneuraminicHMDB
Acid, sialicHMDB
N Acetylneuraminic acidHMDB
N-Acetylneuraminic acidHMDB
Sialic acidHMDB
N-Acetyl-a-neuraminic acidGenerator
Chemical FormulaC11H19NO9
Average Molecular Weight309.2699
Monoisotopic Molecular Weight309.105981211
IUPAC Name(2R,4S,5R,6R)-5-acetamido-2,4-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid
Traditional NameN-acetylneuraminic acid
CAS Registry Number21646-00-4
SMILES
[H][C@]1(O[C@](O)(C[C@H](O)[C@H]1NC(C)=O)C(O)=O)[C@H](O)[C@H](O)CO
InChI Identifier
InChI=1S/C11H19NO9/c1-4(14)12-7-5(15)2-11(20,10(18)19)21-9(7)8(17)6(16)3-13/h5-9,13,15-17,20H,2-3H2,1H3,(H,12,14)(H,18,19)/t5-,6+,7+,8+,9+,11+/m0/s1
InChI KeySQVRNKJHWKZAKO-YRMXFSIDSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as n-acylneuraminic acids. These are neuraminic acids carrying an N-acyl substituent.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbohydrates and carbohydrate conjugates
Direct ParentN-acylneuraminic acids
Alternative Parents
Substituents
  • N-acylneuraminic acid
  • Neuraminic acid
  • C-glucuronide
  • C-glycosyl compound
  • Glycosyl compound
  • Alpha-hydroxy acid
  • Pyran
  • Hydroxy acid
  • Oxane
  • Acetamide
  • Carboxamide group
  • Hemiacetal
  • Secondary carboxylic acid amide
  • Secondary alcohol
  • Carboxylic acid derivative
  • Carboxylic acid
  • Oxacycle
  • Organoheterocyclic compound
  • Monocarboxylic acid or derivatives
  • Polyol
  • Alcohol
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Organopnictogen compound
  • Primary alcohol
  • Organic oxide
  • Carbonyl group
  • Organonitrogen compound
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-2.8ALOGPS
logP-3.6ChemAxon
logS-0.13ALOGPS
pKa (Strongest Acidic)3ChemAxon
pKa (Strongest Basic)-1.3ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count9ChemAxon
Hydrogen Donor Count7ChemAxon
Polar Surface Area176.78 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity63.78 m³·mol⁻¹ChemAxon
Polarizability28.19 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-03dl-9370000000-a2a8e1f2580c7bb97655View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (5 TMS) - 70eV, Positivesplash10-0pb9-2390148000-6c04c73ad5de1e54ba0eView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_5_15) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS ("N-Acetyl-a-neuraminic acid,5TBDMS,#15" TMS) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_3) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_4) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_5) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_6) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_7) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_3) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_4) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_5) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_6) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_7) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_8) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_9) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_10) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_11) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_12) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-01ox-1092000000-ca2f76604846382a3032View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-03kc-6190000000-7e304e9fa3125067d352View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-08fu-9240000000-65d03a6c6f60a71416c6View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-074j-4961000000-bc80694ae9687db9a365View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-9210000000-c1d9f41a64bc464147ddView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9300000000-a1d857dc5ad7118647b3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03kc-0095000000-8f7746cc3f652b12033fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-02tc-1392000000-3e251c9d2583e71f866aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-03di-7910000000-ba41b78e53cb934a9b19View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-3039000000-4348eff0515b0da3bc08View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a59-6290000000-5ac6f13cca0827ab0dd0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4u-9100000000-ac22477eeca403481effView in MoNA
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
HMDB IDHMDB0000773
DrugBank IDDB03721
Phenol Explorer Compound IDNot Available
FooDB IDFDB022234
KNApSAcK IDNot Available
Chemspider ID392681
KEGG Compound IDC19909
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN ID5739
PubChem Compound444885
PDB IDNot Available
ChEBI ID49026
References
Synthesis ReferenceBaumberger, Franz; Vasella, Andrea. , Synthesis of N-acetylneuraminic acid and N-acetyl-4-epineuraminic acid. Helvetica Chimica Acta (1986), 69(5), 1205-15.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available