Record Information
Version1.0
Creation Date2009-06-19 21:58:43 UTC
Update Date2026-04-05 17:41:08 UTC
Accession NumberCHEM001197
Identification
Common NameCobalt(II) citrate
ClassSmall Molecule
DescriptionCobalt(II) citrate is a chemical compound of cobalt. Cobalt is a metallic element with the atomic number 27. It is found naturally in rocks, soil, water, plants, and animals. In small amounts cobalt is an essential element for life, as it is part of vitamin B12. However, excess exposure is known to exhibit toxic effects. (2, 3)
Contaminant Sources
  • IARC Carcinogens Group 2B
  • T3DB toxins
Contaminant Type
  • Cobalt Compound
  • Industrial/Workplace Toxin
  • Organic Compound
  • Organometallic
  • Pollutant
  • Synthetic Compound
Chemical Structure
Thumb
Synonyms
ValueSource
Cobalt(II) citric acidGenerator
Chemical FormulaC12H10Co3O14
Average Molecular Mass554.999 g/mol
Monoisotopic Mass554.807 g/mol
CAS Registry Number866-81-9
IUPAC Nametris(λ²-cobalt(2+) ion) bis(2-hydroxypropane-1,2,3-tricarboxylate)
Traditional Nametris(λ²-cobalt(2+) ion) dicitrate
SMILES[Co++].[Co++].[Co++].OC(CC([O-])=O)(CC([O-])=O)C([O-])=O.OC(CC([O-])=O)(CC([O-])=O)C([O-])=O
InChI IdentifierInChI=1S/2C6H8O7.3Co/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3*+2/p-6
InChI KeyIEXXNGVQCLMTKU-UHFFFAOYSA-H
Chemical Taxonomy
Description belongs to the class of organic compounds known as tricarboxylic acids and derivatives. These are carboxylic acids containing exactly three carboxyl groups.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassTricarboxylic acids and derivatives
Direct ParentTricarboxylic acids and derivatives
Alternative Parents
Substituents
  • Tricarboxylic acid or derivatives
  • Tertiary alcohol
  • Carboxylic acid salt
  • Organic transition metal salt
  • Carboxylic acid
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organic cobalt salt
  • Organic salt
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkNot Available
External DescriptorsNot Available
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological RolesNot Available
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilitySoluble in water.
Predicted Properties
PropertyValueSource
Water Solubility5.52 g/LALOGPS
logP0.07ALOGPS
logP-1.3ChemAxon
logS-2ALOGPS
pKa (Strongest Acidic)3.05ChemAxon
pKa (Strongest Basic)-4.2ChemAxon
Physiological Charge-3ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area140.62 ŲChemAxon
Rotatable Bond Count10ChemAxon
Refractivity68.14 m³·mol⁻¹ChemAxon
Polarizability14.23 ųChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
SpectraNot Available
Toxicity Profile
Route of ExposureInhalation (2) ; oral (2) ; dermal (2)
Mechanism of ToxicityCobalt is believed to exhibit its toxicity through a oxidant-based and free radical-based processes. It produces oxygen radicals and may be oxidized to ionic cobalt, causing increased lipid peroxidation, DNA damage, and inducing certain enzymes that lead to cell apoptosis. Cobalt has also been shown to block inorganic calcium channels, possibly impairing neurotransmission. Cobalt can also chelate lipoic acids, impairing oxidation of pyruvate or fatty acids. In addition, cobalt may inhibit DNA repair by interacting with zinc finger DNA repair proteins, and has also been shown to inhibit heme synthesis and glucose metabolism. Cobalt may activate specific helper T-lymphocyte cells and interact directly with immunologic proteins, such as antibodies (IgA and IgE) or Fc receptors, resulting in immunosensitization. (2)
MetabolismCobalt is absorbed though the lungs, gastrointestinal tract, and skin. Since it is a component of the vitamin B12 (cyanocobalamin), it is distributed to most tissues of the body. It is transported in the blood, often bound to albumin, with the highest levels being found in the liver and kidney. Cobalt is excreted mainly in the urine and faeces. (2)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)2B, possibly carcinogenic to humans. (5)
Uses/SourcesNot Available
Minimum Risk LevelChronic Inhalation: 0.0001 mg/m3 (4) Intermediate Oral: 0.01 mg/kg/day (4)
Health EffectsExposure to high amount of cobalt can cause heart, lung, kidney, and liver damage. Skin contact is known to result in contact dermatitis. Cobalt may also have mutagenic and carcinogenic effects. (2, 3)
SymptomsCobalt inhalation can cause asthma-like breathing problems. Skin contact is known to result in contact dermatitis, which is characterized by irritation and rashes. Ingesting large amounts of cobalt may cause nausea and vomiting. (6)
TreatmentTreatment of cobalt poisoning is symptomatic. (2)
Concentrations
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 LinkNot Available
Chemspider IDNot Available
ChEBI IDNot Available
PubChem Compound ID13343
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available