Hmdb loader
You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version5.0
StatusDetected and Quantified
Creation Date2006-05-22 14:17:35 UTC
Update Date2020-09-18 17:16:00 UTC
HMDB IDHMDB0002078
Secondary Accession Numbers
  • HMDB02078
Metabolite Identification
Common NameCyanate
DescriptionThe cyanate ion is an anion consisting of one oxygen atom, one carbon atom, and one nitrogen atom, [OCN], in that order. The cyanate ion possesses 1 unit of negative charge, borne mainly by the nitrogen atom. In organic compounds the cyanate group is a functional group. The cyanate ion is an ambident nucleophile in nucleophilic substitution because it can react to form an alkyl cyanate R-OCN (exception) or an alkyl isocyanate R-NCO (rule). Aryl cyanates (C6H5OCN) can be formed by a reaction of phenol with cyanogen chloride (ClCN) in the presence of a base. The cyanate ion is relatively non-toxic in comparison with cyanides. Use of this fact is made in cyanide decontamination processes where a permanganate oxidation converts toxic cyanide to safer cyanate. Cyanate can be decomposed by the enzyme cyanate lyase (or cyanase), which is found in bacteria and plants. In particular cyanate can be decomposed to carbamate (ammonia) and carbon dioxide. Alternately the same enzyme can be used to synthesize cyanate using carbamate and carbon dioxide.
Structure
Data?1600449360
Synonyms
ValueSource
[C(N)OH]ChEBI
CyansaeureChEBI
HOCNChEBI
ZyansaeureChEBI
Cyanic acidKegg
Chemical FormulaCHNO
Average Molecular Weight43.0247
Monoisotopic Molecular Weight43.005813659
IUPAC Namecyanic acid
Traditional Namecyanic acid
CAS Registry Number71000-82-3
SMILES
OC#N
InChI Identifier
InChI=1S/CHNO/c2-1-3/h3H
InChI KeyXLJMAIOERFSOGZ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as cyanates. These are organic compounds containing the cyanate functional group with the formula [OCN]-.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganic oxoanionic compounds
Sub ClassCyanates
Direct ParentCyanates
Alternative Parents
Substituents
  • Organic cyanate
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Disposition

Biological location

Source

Route of exposure

Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Spectral PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility38.8 g/LALOGPS
logP10(-1.1) g/LALOGPS
logP10(-0.54) g/LChemAxon
logS10(-0.44) g/LALOGPS
pKa (Strongest Acidic)-1.3ChemAxon
pKa (Strongest Basic)-9.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area44.02 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity9.22 m³·mol⁻¹ChemAxon
Polarizability3.16 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Spectral Properties

Predicted Kovats Retention Indices

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Cyanate,1TMS,#1C[Si](C)(C)OC#N767.5Semi standard non polarhttps://arxiv.org/abs/1905.12712
Cyanate,1TBDMS,#1CC(C)(C)[Si](C)(C)OC#N1009.4Semi standard non polarhttps://arxiv.org/abs/1905.12712
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Cyanate GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Cyanate Quattro_QQQ 10V, Positive-QTOF (Annotated)splash10-0006-9000000000-5051e8304fc346b1051c2018-05-17HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Cyanate Quattro_QQQ 25V, Positive-QTOF (Annotated)splash10-0006-9000000000-af39beb571105afa63472018-05-17HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Cyanate Quattro_QQQ 40V, Positive-QTOF (Annotated)splash10-0006-9000000000-866a3d8943d2093ad7542018-05-17HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 10V, Positive-QTOFsplash10-0006-9000000000-5f0d8b45c37b6532d33c2015-09-15Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 20V, Positive-QTOFsplash10-0006-9000000000-5f0d8b45c37b6532d33c2015-09-15Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 40V, Positive-QTOFsplash10-0006-9000000000-5f0d8b45c37b6532d33c2015-09-15Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 10V, Negative-QTOFsplash10-0006-9000000000-005e171faa9586cdda442015-09-15Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 20V, Negative-QTOFsplash10-0006-9000000000-005e171faa9586cdda442015-09-15Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 40V, Negative-QTOFsplash10-0006-9000000000-005e171faa9586cdda442015-09-15Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 10V, Positive-QTOFsplash10-0006-9000000000-fd9f25340762315b45152021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 20V, Positive-QTOFsplash10-0006-9000000000-fd9f25340762315b45152021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 40V, Positive-QTOFsplash10-0006-9000000000-fd9f25340762315b45152021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 10V, Negative-QTOFsplash10-0006-9000000000-90726b17dc36e29c52992021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 20V, Negative-QTOFsplash10-0006-9000000000-90726b17dc36e29c52992021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Cyanate 40V, Negative-QTOFsplash10-0006-9000000000-90726b17dc36e29c52992021-09-24Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.045 +/- 0.021 uMAdult (>18 years old)BothNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB022835
KNApSAcK IDC00000137
Chemspider ID525
KEGG Compound IDC01417
BioCyc IDCPD-69
BiGG IDNot Available
Wikipedia LinkCyanate
METLIN IDNot Available
PubChem Compound540
PDB IDNot Available
ChEBI ID28024
Food Biomarker OntologyNot Available
VMH IDCYNT
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceHseu, Tzong Hsiung; Lan, Shih Li; Yang, Min Der. Cyanate from alkaline hydrolysis of cyanogen bromide-activated polysaccharides. Analytical Biochemistry (1981), 116(1), 181-4.
Material Safety Data Sheet (MSDS)Download (PDF)
General ReferencesNot Available