Record Information
Version2.0
Creation Date2014-09-08 02:38:41 UTC
Update Date2014-12-24 20:26:54 UTC
Accession NumberT3D4631
Identification
Common NameN-(2-Cyanoethyl)valine
ClassSmall Molecule
DescriptionN-(2-Cyanoethyl)valine is a modified amino acid that arises from acrylonitrile modification of N-terminal amino acid in hemoglobin. It is used as a biomarker of long term or historical exposure to acrylonitrile (a byproduct of smoking cigarettes). The free amino acid arises from proteolytic degradation of hemoglobin.
Compound Type
  • Amine
  • Industrial/Workplace Toxin
  • Nitrile
  • Organic Compound
  • Synthetic Compound
Chemical Structure
Thumb
SynonymsNot Available
Chemical FormulaC8H14N2O2
Average Molecular Mass170.209 g/mol
Monoisotopic Mass170.106 g/mol
CAS Registry Number51078-49-0
IUPAC Name(2S)-2-[(2-cyanoethyl)amino]-3-methylbutanoic acid
Traditional Name(2S)-2-[(2-cyanoethyl)amino]-3-methylbutanoic acid
SMILES[H][C@](NCCC#N)(C(C)C)C(O)=O
InChI IdentifierInChI=1S/C8H14N2O2/c1-6(2)7(8(11)12)10-5-3-4-9/h6-7,10H,3,5H2,1-2H3,(H,11,12)/t7-/m0/s1
InChI KeyInChIKey=RXNXODTWPQTIHO-ZETCQYMHSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as valine and derivatives. Valine and derivatives are compounds containing valine or a derivative thereof resulting from reaction of valine 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 ParentValine and derivatives
Alternative Parents
Substituents
  • Valine or derivatives
  • Alpha-amino acid
  • L-alpha-amino acid
  • Branched fatty acid
  • Methyl-branched fatty acid
  • Fatty acid
  • Fatty acyl
  • Amino acid
  • Carboxylic acid
  • Secondary aliphatic amine
  • Monocarboxylic acid or derivatives
  • Carbonitrile
  • Nitrile
  • Secondary amine
  • Carbonyl group
  • Organic oxygen compound
  • Amine
  • Organic nitrogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
LogPNot Available
Predicted Properties
PropertyValueSource
Water Solubility9.94 g/LALOGPS
logP-0.4ALOGPS
logP-2ChemAxon
logS-1.2ALOGPS
pKa (Strongest Acidic)0.43ChemAxon
pKa (Strongest Basic)8.42ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area73.12 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity44.03 m³·mol⁻¹ChemAxon
Polarizability18.01 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyDeposition DateView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0fmi-1900000000-36979e0089359e38c4c82016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udi-7900000000-33569a95f9da21989b152016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-9100000000-ee04f224d5f6dbf5f7042016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-0900000000-35f10ffe39ddd3b7daaa2016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-2900000000-67cc0d26820ce0a3b5502016-08-03View Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0g4l-9200000000-1d6c196cc0bc255f75062016-08-03View Spectrum
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityOrganic nitriles decompose into cyanide ions both in vivo and in vitro. Consequently the primary mechanism of toxicity for organic nitriles is their production of toxic cyanide ions or hydrogen cyanide. Cyanide is an inhibitor of cytochrome c oxidase in the fourth complex of the electron transport chain (found in the membrane of the mitochondria of eukaryotic cells). It complexes with the ferric iron atom in this enzyme. The binding of cyanide to this cytochrome prevents transport of electrons from cytochrome c oxidase to oxygen. As a result, the electron transport chain is disrupted and the cell can no longer aerobically produce ATP for energy. Tissues that mainly depend on aerobic respiration, such as the central nervous system and the heart, are particularly affected. Cyanide is also known produce some of its toxic effects by binding to catalase, glutathione peroxidase, methemoglobin, hydroxocobalamin, phosphatase, tyrosinase, ascorbic acid oxidase, xanthine oxidase, succinic dehydrogenase, and Cu/Zn superoxide dismutase. Cyanide binds to the ferric ion of methemoglobin to form inactive cyanmethemoglobin. (3)
MetabolismOrganic nitriles are converted into cyanide ions through the action of cytochrome P450 enzymes in the liver. Cyanide is rapidly absorbed and distributed throughout the body. Cyanide is mainly metabolized into thiocyanate by either rhodanese or 3-mercaptopyruvate sulfur transferase. Cyanide metabolites are excreted in the urine. (2)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesIt is used as a biomarker of long term or historical exposure to acrylonitrile (a byproduct of smoking cigarettes).
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
DrugBank IDNot Available
HMDB IDNot Available
PubChem Compound ID11665476
ChEMBL IDNot Available
ChemSpider ID9840208
KEGG IDNot Available
UniProt IDNot Available
OMIM ID
ChEBI IDNot Available
BioCyc IDNot Available
CTD IDNot Available
Stitch IDNot Available
PDB IDNot Available
ACToR IDNot Available
Wikipedia LinkNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
  1. Phillips DH: Smoking-related DNA and protein adducts in human tissues. Carcinogenesis. 2002 Dec;23(12):1979-2004. [12507921 ]
  2. ATSDR - Agency for Toxic Substances and Disease Registry (2006). Toxicological profile for cyanide. U.S. Public Health Service in collaboration with U.S. Environmental Protection Agency (EPA). [Link]
  3. Wikipedia. Cyanide poisoning. Last Updated 30 March 2009. [Link]
Gene Regulation
Up-Regulated GenesNot Available
Down-Regulated GenesNot Available