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Record Information
Creation Date2009-04-04 05:03:21 UTC
Update Date2016-11-09 01:08:20 UTC
Accession NumberCHEM000692
Common NameTrimethylsilyl cyanide
ClassSmall Molecule
DescriptionTrimethylsilyl cyanide is a chemical compound of cyanide. It is used in organic synthesis. (4)
Contaminant Sources
  • T3DB toxins
Contaminant Type
  • Cyanide Compound
  • Industrial/Workplace Toxin
  • Nitrile
  • Organic Compound
  • Organometallic
  • Pollutant
  • Synthetic Compound
Chemical Structure
Chemical FormulaC4H9NSi
Average Molecular Mass99.207 g/mol
Monoisotopic Mass99.050 g/mol
CAS Registry Number7677-24-9
IUPAC Nametrimethylsilanecarbonitrile
Traditional Nametrimethylsilyl cyanide
InChI IdentifierInChI=1S/C4H9NSi/c1-6(2,3)4-5/h1-3H3
Chemical Taxonomy
Description belongs to the class of organic compounds known as trialkylsilanes. These are organosilicon compounds containing exactly one alkyl chain attached to the silicon atom.
KingdomOrganic compounds
Super ClassOrganometallic compounds
ClassOrganometalloid compounds
Sub ClassOrganosilicon compounds
Direct ParentTrialkylsilanes
Alternative Parents
  • Trialkylsilane
  • Organic metalloid salt
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organic salt
  • Organonitrogen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
AppearanceWhite powder.
Experimental Properties
Melting Point8°C
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
Water Solubility19.6 g/LALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area23.79 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity23.3 m³·mol⁻¹ChemAxon
Polarizability10.45 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0900000000-9866c2109708fc8e9e49View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udi-1900000000-25e0cdb01fec8605c57bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0udi-1900000000-935ed5b226fa89a509cfView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-9000000000-5b69ff15a0c8ef9387daView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-9000000000-25a8c4a12e54febaae13View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00dj-9000000000-86516947d861dadb0fa4View in MoNA
1D NMR1H NMR SpectrumNot Available
1D NMR13C NMR SpectrumNot Available
Toxicity Profile
Route of ExposureInhalation (2) ; oral (2) ; dermal (2)
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 Dose200 to 300 milligrams for an adult human (cyanide salts). (1)
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesTrimethylsilyl cyanide is used in organic synthesis. (4)
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. (2, 3)
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. (2, 3)
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. (3)
Not Available
DrugBank IDNot Available
HMDB IDNot Available
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkTrimethylsilyl cyanide
Chemspider IDNot Available
ChEBI IDNot Available
PubChem Compound ID82115
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available