Record Information
Creation date2015-10-09 22:31:56 UTC
Update date2017-01-19 02:36:32 UTC
FoodComEx IDPC000683
FoodDB RecordFDB022835
Chemical Information
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. [HMDB]
CAS Number71000-82-3
Cyanate ionChEBI
Cyanic acidhmdb
Cyanic acid ionGenerator
Chemical FormulaCNO
IUPAC namecyanate
InChI IdentifierInChI=1S/CHNO/c2-1-3/h3H/p-1
Isomeric SMILES[O-]C#N
Average Molecular Weight42.0168
Monoisotopic Molecular Weight41.997988627
Chemical Taxonomy
DescriptionThis compound 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
  • Organic cyanate
  • Organic nitrogen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Organic anion
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physico-Chemical Properties - Experimental
Experimental logPNot Available
Experimental Water SolubilityNot Available
Melting PointNot Available
Foods of Origin
FoodContent Range AverageReference
Production Data
Production Methodcommercial
Production Method ReferenceNot Available
Production Method Reference FileNot Available
Quantity AvailableProduction upon request, up to 800 mg
Delivery TimeNot Available
Storage Formsolid
Storage Conditions-80°C
StabilityNot Available
PurityNot Available
Spectral Data Upon RequestNot Available
Provider Information
Contact NameContact InstitutionContact Email
Rosa Vazquez
Commercial Vendors
MetaSci HMDB0002078
Sigma-Aldrich HMDB0002078