Record Information
Version1.0
Creation date2011-09-21 00:25:39 UTC
Update date2018-01-23 20:19:41 UTC
Primary IDFDB023168
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameD-Cysteine
DescriptionCysteine (abbreviated as Cys or C) is an alpha-amino acid. The L-isomer is one of the 22 proteinogenic amino acids, i.e., the building blocks of proteins. D-isomers are used as carbon, nitrogen, and energy source. Cysteine is unique among the twenty common amino acids because it contains a thiol group. [YMDB]. D-Cysteine is found in many foods, some of which are red raspberry, muscadine grape, pigeon pea, and groundcherry.
CAS Number921-01-7
Structure
Thumb
Synonyms
SynonymSource
(2S)-2-Amino-3-mercaptopropanoic acidChEBI
(2S)-2-Amino-3-sulfanylpropanoic acidChEBI
(S)-2-Amino-3-mercaptopropanoic acidChEBI
D-Amino-3-mercaptopropionic acidChEBI
D-CysteinChEBI
D-ZysteinChEBI
DCYChEBI
(2S)-2-Amino-3-mercaptopropanoateGenerator
(2S)-2-Amino-3-sulfanylpropanoateGenerator
(2S)-2-Amino-3-sulphanylpropanoateGenerator
(2S)-2-Amino-3-sulphanylpropanoic acidGenerator
(S)-2-Amino-3-mercaptopropanoateGenerator
D-Amino-3-mercaptopropionateGenerator
CysteineHMDB
Half cystineHMDB
Cysteine hydrochlorideHMDB
Half-cystineHMDB
L-CysteineHMDB
L CysteineHMDB
Zinc cysteinateHMDB
(2S)-2-amino-3-MercaptopropanoateGenerator
(2S)-2-amino-3-Mercaptopropanoic acidChEBI
(2S)-2-amino-3-SulfanylpropanoateGenerator
(2S)-2-amino-3-Sulfanylpropanoic acidChEBI
(2S)-2-amino-3-SulphanylpropanoateGenerator
(2S)-2-amino-3-Sulphanylpropanoic acidGenerator
(S)-2-amino-3-MercaptopropanoateGenerator
(S)-2-amino-3-Mercaptopropanoic acidChEBI
Predicted Properties
PropertyValueSource
Water Solubility23.1 g/LALOGPS
logP-2.6ALOGPS
logP-2.8ChemAxon
logS-0.72ALOGPS
pKa (Strongest Acidic)2.35ChemAxon
pKa (Strongest Basic)9.05ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area63.32 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity28.22 m³·mol⁻¹ChemAxon
Polarizability11.4 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC3H7NO2S
IUPAC name(2S)-2-amino-3-sulfanylpropanoic acid
InChI IdentifierInChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m1/s1
InChI KeyXUJNEKJLAYXESH-UWTATZPHSA-N
Isomeric SMILESN[C@H](CS)C(O)=O
Average Molecular Weight121.15
Monoisotopic Molecular Weight121.019749643
Classification
Description belongs to the class of organic compounds known as cysteine and derivatives. Cysteine and derivatives are compounds containing cysteine or a derivative thereof resulting from reaction of cysteine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentCysteine and derivatives
Alternative Parents
Substituents
  • Cysteine or derivatives
  • Alpha-amino acid
  • D-alpha-amino acid
  • Amino acid
  • Alkylthiol
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic oxygen compound
  • Primary amine
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Primary aliphatic amine
  • Carbonyl group
  • Amine
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxide
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateSolid
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
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
ChemSpider ID83819
ChEMBL IDCHEMBL171281
KEGG Compound IDC00793
Pubchem Compound ID92851
Pubchem Substance IDNot Available
ChEBI ID16375
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB03417
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDC00007323
HET IDDCY
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
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSshow
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference