Methyl thiocyanate (CHEM001430)

IdentificationTaxonomyBiological PropertiesPhysical PropertiesToxicity ProfileSpectraConcentrationsLinksReferencesTargets (39)XML
Record Information
Version1.0
Creation Date2009-06-22 16:08:25 UTC
Update Date2026-04-03 10:24:51 UTC
Accession NumberCHEM001430
Identification
Common NameMethyl thiocyanate
ClassSmall Molecule
DescriptionMethyl thiocyanate is a chemical compound of cyanide.
Contaminant Sources
  • Clean Air Act Chemicals
  • FooDB Chemicals
  • T3DB toxins
Contaminant Type
  • Cyanide Compound
  • Ether
  • Food Toxin
  • Industrial/Workplace Toxin
  • Nitrile
  • Organic Compound
  • Pollutant
  • Synthetic Compound
Chemical Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
ValueSource
CH3ScnChEBI
MeSCNChEBI
Methyl rhodanateChEBI
Methyl sulfocyanateChEBI
MethylrhodanidChEBI
Methyl rhodanic acidGenerator
Methyl sulfocyanic acidGenerator
Methyl sulphocyanateGenerator
Methyl sulphocyanic acidGenerator
Methyl thiocyanic acidGenerator
Chemical FormulaC2H3NS
Average Molecular Mass73.117 g/mol
Monoisotopic Mass72.999 g/mol
CAS Registry Number556-64-9
IUPAC Name(methylsulfanyl)carbonitrile
Traditional Namemethyl thiocyanate
SMILESCSC#N
InChI IdentifierInChI=1S/C2H3NS/c1-4-2-3/h1H3
InChI KeyVYHVQEYOFIYNJP-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as thiocyanates. These are salts or esters of thiocyanic acid, with the general formula RSC#N (R=alkyl, aryl).
KingdomOrganic compounds
Super ClassOrganosulfur compounds
ClassThiocyanates
Sub ClassNot Available
Direct ParentThiocyanates
Alternative Parents
Substituents
  • Sulfenyl compound
  • Thiocyanate
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
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
StateLiquid
AppearanceColorless liquid.
Experimental Properties
PropertyValue
Melting Point-5°C
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility32.5 g/LALOGPS
logP-0.2ALOGPS
logP0.89ChemAxon
logS-0.35ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area23.79 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity20 m³·mol⁻¹ChemAxon
Polarizability6.99 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00di-9000000000-92514d00ea36dd395969Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-9000000000-d03ee6a93b3c204bd442Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-9000000000-8941ee6463dedb06b3ddSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-006t-9000000000-0ab5eb8bf2dbeb168a38Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-9000000000-bf38d4eeab29f2bf5abfSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00di-9000000000-3fa6d7688869fbf93814Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-9000000000-60283a4c32d789c1a7b6Spectrum
MSMass Spectrum (Electron Ionization)splash10-00dj-9000000000-3f2a177f4006bae8a673Spectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
Toxicity Profile
Route of ExposureOral (1) ; inhalation (1) ; dermal (1)
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. (2)
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. (1)
Toxicity ValuesNot Available
Lethal Dose200 to 300 milligrams for an adult human (cyanide salts). (3)
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesNot Available
Minimum Risk LevelNot Available
Health EffectsExposure to high levels of cyanide for a short time harms the brain and heart and can even cause coma, seizures, apnea, cardiac arrest and death. Chronic inhalation of cyanide causes breathing difficulties, chest pain, vomiting, blood changes, headaches, and enlargement of the thyroid gland. Skin contact with cyanide salts can irritate and produce sores. (1, 2)
SymptomsCyanide poisoning is identified by rapid, deep breathing and shortness of breath, general weakness, giddiness, headaches, vertigo, confusion, convulsions/seizures and eventually loss of consciousness. (1, 2)
TreatmentAntidotes to cyanide poisoning include hydroxocobalamin and sodium nitrite, which release the cyanide from the cytochrome system, and rhodanase, which is an enzyme occurring naturally in mammals that combines serum cyanide with thiosulfate, producing comparatively harmless thiocyanate. Oxygen therapy can also be administered. (2)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0062134
FooDB IDFDB013885
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkMethyl thiocyanate
Chemspider IDNot Available
ChEBI ID61112
PubChem Compound ID11168
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General References
1. https://www.ncbi.nlm.nih.gov/pubmed/?term=12369626
2. https://www.ncbi.nlm.nih.gov/pubmed/?term=19419967