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CAS 68-19-9

CAS 68-19-9 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 68-19-9
CAS 68-19-9PubChem CID 165339223

Vitamin B12

vitamin B12 is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). E. coli Metabolome Database (ECMDB)

IUPAC name
cobalt(3+);[(2R,3S,5S)-5-(5,6-dimethylbenzimidazol-1-yl)-4-hydroxy-2-(hydroxymethyl)oxolan-3-yl] [(2R)-1-[3-[(1R,2R,3R,4Z,7S,9Z,12S,13S,14Z,17S,18S,19R)-2,13,18-tris(2-amino-2-oxoethyl)-7,12,17-tris(3-amino-3-oxopropyl)-3,5,8,8,13,15,18,19-octamethyl-2,7,12,17-tetrahydro-1H-corrin-21-id-3-yl]propanoylamino]propan-2-yl] phosphate;cyanide
Molecular formula
C63H88CoN14O14P
Molecular weight
1355.4 g/mol
Exact mass
1354.567399 Da
Topological polar surface area
476.0 Ų
Hydrogen-bond donors
9
Hydrogen-bond acceptors
21
Covalent units
3
Defined stereocentres
13

Also known as

CoobalamedVitamin B 12CynobalB 12, VitaminVitamine B12vitamin B-12Distivit (B12 peptide)Factor II (vitamin B12)
11 more reported names
Vatimin B12B12, VitaminRefChem:901999CHEBI:176843Cobinamide, cyanide hydroxide, dihydrogen phosphateCobalamin (III)Cyanocobalamin (Vitamin B12)MecobalaminAnacobinVitamin B12;CyanocobalaminV3378

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 68-19-9

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How CAS 68-19-9 is used on this site

CAS 68-19-9 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 68-19-9 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.