Record Information
Version 1.0
Update Date 1/22/2018 11:54:54 AM
Metabolite IDPAMDB001695
Identification
Name: Thiocyanate
Description:Thiocyanate is analogous to the cyanate ion, [OCN]-, wherein oxygen is replaced by sulfur. [SCN]- is one of the pseudohalogens, due to the similarity of its reactions to that of halide ions. Thiocyanate was formerly known as rhodanide (from a Greek word for rose) because of the red color of its complexes with iron. Thiocyanates are typically colorless. Cyanide ions can react with cystine to yield thicocyanate. This reaction occurs to a slight extent even in neutral solution, but is more pronounced in alkaline solutions of cystine. In addition to this non-enzymatic route, cyanide produced in vivo can be converted in part to thiocyanate by sulfur transferase systems. The thiocyanate ion can be oxidized at acid pH by hydrogen peroxide to generate sulfate and cyanide. The reaction is catalyzed by hemoglobin acting as a peroxidase; Thiocyanate is analogous to the cyanate ion, [OCN]-, wherein oxygen is replaced by sulfur. [SCN]- is one of the pseudohalides, due to the similarity of its reactions to that of halide ions. Thiocyanate used to be known as rhodanide (from a Greek word for rose) because of the red colour of its complexes with iron. Thiocyanate is produced by the reaction of elemental sulfur or thiosulfate with cyanide:; Thiocyanate shares its negative charge approximately equally between sulfur and nitrogen. As a consequence, thiocyanate can act as a nucleophile at either sulfur or nitrogen
Structure
Thumb
Synonyms:
  • Allyl isothiocyanate
  • Allyl isothiocyanic acid
  • Ammonium rhodanate
  • Ammonium rhodanic acid
  • Ammonium rhodanide
  • Ammonium sulfocyanate
  • Ammonium sulfocyanic acid
  • Ammonium sulphocyanate
  • Ammonium sulphocyanic acid
  • HSCN
  • Hydrogen thiocyanate
  • Hydrogen thiocyanic acid
  • N3C1S
  • NCS-
  • Nitridosulfanidocarbon
  • Nitridosulfidocarbonate(1)
  • Nitridosulfidocarbonic acid(1)
  • Nitridosulphanidocarbon
  • Nitridosulphidocarbonate(1)
  • Nitridosulphidocarbonic acid(1)
  • Nitridothiocarbonate(1)
  • Nitridothiocarbonate(4)
  • Nitridothiocarbonic acid(1)
  • Nitridothiocarbonic acid(4)
  • Rhodanid
  • Rhodanide
  • SCN
  • Silver thiocyanate agscn
  • Silver thiocyanic acid agscn
  • Thallium thiocyanate
  • Thallium thiocyanic acid
  • Thiocyanate
  • Thiocyanate ion
  • Thiocyanate ion (1)
  • Thiocyanic acid
  • Thiocyanic acid ion
  • Thiocyanic acid ion (1)
  • Thiocyanid
  • Thiozyanat
  • Weedazol TL
  • [S1C3N]
Chemical Formula: CNS
Average Molecular Weight: 58.082
Monoisotopic Molecular Weight: 57.975144695
InChI Key: ZMZDMBWJUHKJPS-UHFFFAOYSA-M
InChI:InChI=1S/CHNS/c2-1-3/h3H/p-1
CAS number: Not Available
IUPAC Name:sulfanylformonitrile
Traditional IUPAC Name: thiocyanate ion
SMILES:[S-]C#N
Chemical Taxonomy
Taxonomy DescriptionThis compound 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).
Kingdom Organic compounds
Super ClassOrganosulfur compounds
Class Thiocyanates
Sub ClassNot Available
Direct Parent Thiocyanates
Alternative Parents
Substituents
  • Thiocyanate
  • 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 Solubility6.75 mg/mLALOGPS
logP0.32ALOGPS
logP0.51ChemAxon
logS-0.94ALOGPS
pKa (Strongest Acidic)0.5ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area23.79 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity15.35 m3·mol-1ChemAxon
Polarizability5.04 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Cytoplasm
Reactions:
Pathways:
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-9000000000-4b520f6de4bad9245d97View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-9000000000-4b520f6de4bad9245d97View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000000000-4b520f6de4bad9245d97View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-9000000000-83b329eff086a9bf9fc0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4i-9000000000-83b329eff086a9bf9fc0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-83b329eff086a9bf9fc0View in MoNA
References
References:
  • 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
  • Winder, C. L., Dunn, W. B., Schuler, S., Broadhurst, D., Jarvis, R., Stephens, G. M., Goodacre, R. (2008). "Global metabolic profiling of Escherichia coli cultures: an evaluation of methods for quenching and extraction of intracellular metabolites." Anal Chem 80:2939-2948. Pubmed: 18331064
Synthesis Reference: Not Available
Material Safety Data Sheet (MSDS) Download (PDF)
External Links:
ResourceLink
CHEBI ID18022
HMDB IDHMDB01453
Pubchem Compound ID781
Kegg IDC01755
ChemSpider ID760
WikipediaThiocyanate
BioCyc IDHSCN
EcoCyc IDHSCN
Ligand ExpoSCN

Enzymes

General function:
Involved in thiosulfate sulfurtransferase activity
Specific function:
Catalyzes, although with low efficiency, the sulfur transfer reaction from thiosulfate to cyanide. The relatively low affinity of glpE for both thiosulfate and cyanide suggests that these compounds are not the physiological substrates. Thioredoxin 1 or related dithiol proteins could instead be the physiological sulfur-acceptor substrate. Possible association with the metabolism of glycerol-phosphate remains to be elucidated
Gene Name:
glpE
Locus Tag:
PA0589
Molecular weight:
12 kDa
Reactions
Thiosulfate + cyanide = sulfite + thiocyanate.

Transporters