Chemical identity

Vitamin B-12 C-Lactam

CAS 23388-02-5 · C63H86CoN14O14P

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-30868
PubChem CID178186391
NameVitamin B-12 C-Lactam
CAS RN23388-02-5
Molecular formulaC63H86CoN14O14P
Molecular weight1353.4 g/mol
IUPAC nameDehydrovitamin B12
InChIKeyPQOCGDLYVXNQKQ-UHKGZVQOSA-L

02Structure identifiers

2D structurePubChem CID 178186391
Two-dimensional chemical structure of Vitamin B-12 C-Lactam, CAS 23388-02-5
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 9 rings, includes aromatic atoms, includes aliphatic carbon, has 12 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres12
Unassigned stereocentres3
Ring count9
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC1=CC2=C(C=C1C)N(C=N2)[C@@H]3[C@@H]([C@@H]([C@H](O3)CO)OP(=O)([O-])O[C@H](C)CNC(=O)CC[C@@]/4([C@H]([C@@H]5[C@]6([C@@]([C@@H](C(=N6)/C(=C\7/C8(CC(=O)NC8(C(=N7)/C=C\9/C([C@@H](C(=N9)/C(=C4/[N-]5)/C)CCC(=O)N)(C)C)CCC(=O)N)C)/C)CCC(=O)N)(C)CC(=O)N)C)CC(=O)N)C)O.[C-]#N.[Co+3]
InChINot listed
Formula from structureC63H86CoN14O14P
Molecular weight from structure1353.4 g/mol

03Stereochemistry

The published structure contains 12 defined and 3 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres12Structure assigned
Unassigned centres3Structure unspecified
Assignment statusPartially assignedExact published identity
Tetrahedral upper bound≤ 32,768Before symmetry reduction

Published same-connectivity configurations

1 record

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 23388-02-5 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 23388-02-5 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Cyanocobalamin

View API and impurity family

Other names

  • Vitamin B-12 C-Lactam / Dehydrovitamin B12 / Lactam-cobalamin / Cyanocobalamin Impurity 4
  • Vitamin B-12 C-Lactam
  • Dehydrovitamin B12
  • Lactam-cobalamin
  • Cyanocobalamin Impurity 4
  • 8-Hydroxycobinamide Cyanide Hydroxide Dihydrogen Phosphate (Ester) Inner Salt Nc,8-lactam 3’-Ester with 5,6-dimethyl-1-α-D-ribofuranosylbenzimidazole
  • 8-Aminocobinic Acid-abdeg-pentamide Cyanide γ-lactam Dihydrogen Phosphate (Ester) Inner Salt, 3’-Ester with 5,6-Dimethyl-1-α-D-ribofuranosyl-1H-benzimidazole
  • Vitamin B-12 C-Lactam (Technical Grade)
  • 23388-02-5

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources