Cyanate (PAMDB000437)

IdentificationTaxonomyPhysical PropertiesBiological PropertiesSpectraConcentrationsLinksReferencesEnzymes Transporters
Proteins (3280)
Record Information
Version 1.0
Update Date 1/22/2018 11:54:54 AM
Metabolite IDPAMDB000437
Identification
Name: Cyanate
Description:The 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
Thumb
🔍MOLSDFPDBSMILESInChIView Structure
Synonyms:
  • Cyanic acid
  • Hydrogen cyanate
  • Hydrogen cyanic acid
Chemical Formula: CNO
Average Molecular Weight: 42.0168
Monoisotopic Molecular Weight: 41.997988627
InChI Key: XLJMAIOERFSOGZ-UHFFFAOYSA-M
InChI:InChI=1S/CHNO/c2-1-3/h3H/p-1
CAS number: 71000-82-3
IUPAC Name:cyanic acid
Traditional IUPAC Name: cyanic acid
SMILES:[O-]C#N
Chemical Taxonomy
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]-.
Kingdom Organic compounds
Super ClassOrganooxygen compounds
Class Organic oxoanionic compounds
Sub ClassCyanates
Direct Parent Cyanates
Alternative Parents
Substituents
  • Organic cyanate
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aliphatic acyclic compound
Molecular Framework Aliphatic acyclic compounds
External Descriptors
Physical Properties
State: Solid
Charge:-1
Melting point: Not Available
Experimental Properties:
PropertyValueSource
Predicted Properties
PropertyValueSource
Water Solubility15.5 mg/mLALOGPS
logP-1.1ALOGPS
logP-0.54ChemAxon
logS-0.44ALOGPS
pKa (Strongest Acidic)0.36ChemAxon
pKa (Strongest Basic)-9.2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area44.02 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity9.22 m3·mol-1ChemAxon
Polarizability3.16 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Cytoplasm
Reactions:
Cyanate + 3 Hydrogen ion + Hydrogen carbonate >2 Carbon dioxide + Ammonium
Cyanate + Hydrogen ion + Hydrogen carbonate <> Carbon dioxide + Carbamic acid
Cyanate + Carbonic acid + 2 Hydrogen ion > Ammonia +2 Carbon dioxide
Cyanate + Hydrogen carbonate + 2 Hydrogen ion + Carbamic acid <> Ammonia +2 Carbon dioxide
Hydrogen carbonate + Cyanate + Hydrogen ion + Cyanate > Carbamic acid
Pathways:
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-9000000000-5f0d8b45c37b6532d33cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-9000000000-5f0d8b45c37b6532d33cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-5f0d8b45c37b6532d33cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-9000000000-005e171faa9586cdda44View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9000000000-005e171faa9586cdda44View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-005e171faa9586cdda44View in MoNA
References
References:
  • Kanehisa, M., Goto, S., Sato, Y., Furumichi, M., Tanabe, M. (2012). "KEGG for integration and interpretation of large-scale molecular data sets." Nucleic Acids Res 40:D109-D114. Pubmed: 22080510
  • Keseler, I. M., Collado-Vides, J., Santos-Zavaleta, A., Peralta-Gil, M., Gama-Castro, S., Muniz-Rascado, L., Bonavides-Martinez, C., Paley, S., Krummenacker, M., Altman, T., Kaipa, P., Spaulding, A., Pacheco, J., Latendresse, M., Fulcher, C., Sarker, M., Shearer, A. G., Mackie, A., Paulsen, I., Gunsalus, R. P., Karp, P. D. (2011). "EcoCyc: a comprehensive database of Escherichia coli biology." Nucleic Acids Res 39:D583-D590. Pubmed: 21097882
  • van der Werf, M. J., Overkamp, K. M., Muilwijk, B., Coulier, L., Hankemeier, T. (2007). "Microbial metabolomics: toward a platform with full metabolome coverage." Anal Biochem 370:17-25. Pubmed: 17765195
Synthesis Reference: Hseu, 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)
External Links:
ResourceLink
CHEBI ID29195
HMDB IDHMDB02078
Pubchem Compound ID540
Kegg IDC01417
ChemSpider ID94771
WikipediaCyanate
BioCyc IDCPD-69
EcoCyc IDCPD-69

Enzymes

Protein Details
• Cyanate hydratase
General function:
Involved in cyanate hydratase activity
Specific function:
Catalyzes the reaction of cyanate with bicarbonate to produce ammonia and carbon dioxide
Gene Name:
cynS
Locus Tag:
PA2052
Molecular weight:
16.8 kDa
Reactions
Cyanate + HCO(3)(-) + 2 H(+) = NH(3) + 2 CO(2).

Transporters