Chemical identity

Bupivacaine Related Compound B / Bupivacaine EP Impurity B / Mepivacaine EP Impurity B (HCl Salt)

CAS 65797-42-4 · C14H21ClN2O

01Identity

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

Lazychem IDLC-08933
PubChem CID13255626
NameBupivacaine Related Compound B / Bupivacaine EP Impurity B / Mepivacaine EP Impurity B (HCl Salt)
CAS RN65797-42-4
Molecular formulaC14H21ClN2O
Molecular weight268.78 g/mol
IUPAC name2RS)-N-(2,6-dimethylphenyl)piperidine-2-carboxamide Hydrochloride
InChIKeyXUCXNUJDRBMBRF-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 13255626
Two-dimensional chemical structure of Bupivacaine Related Compound B / Bupivacaine EP Impurity B / Mepivacaine EP Impurity B (HCl Salt), CAS 65797-42-4
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aromatic atoms, includes aliphatic carbon, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres1
Ring count2
Secondary amines1
Tertiary amines0
N-methyl amine sites0
SMILESCC1=C(C(=CC=C1)C)NC(=O)C2CCCCN2.Cl
InChINot listed
Formula from structureC14H21ClN2O
Molecular weight from structure268.78 g/mol

03Stereochemistry

The published structure contains 0 defined and 1 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.

Defined centres0Structure assigned
Unassigned centres1Structure unspecified
Assignment statusUnassignedExact published identity
Tetrahedral upper bound≤ 2Before 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.

04Possible N-nitroso structures

Shown for structural screening only. These candidates are not confirmed impurities, formation predictions or analytical findings.

Matched amine site1 candidate
Chemical structure of Bupivacaine Related Compound B / Bupivacaine EP Impurity B / Mepivacaine EP Impurity B (HCl Salt) with the matched amine site highlighted in amber
Amber identifies the screened atom and adjacent bonds.
Possible structure candidateUnverified identity
First calculated possible N-nitroso structure derived from Bupivacaine Related Compound B / Bupivacaine EP Impurity B / Mepivacaine EP Impurity B (HCl Salt), with the new N-nitroso group highlighted in amber
The new N-N=O atoms and bonds are highlighted. No CAS number or compound name is assigned by this calculation.
Candidate 1Possible N-nitroso structural candidate
Calculated formula
C14H20ClN3O2
Candidate SMILES
Cc1cccc(C)c1NC(=O)C1CCCCN1N=O.Cl

Interpretation: A structural alert alone does not establish that a nitrosamine forms. Evaluate nitrite sources, amine reagents, pH, temperature, process sequence, purge and analytical evidence.

05India 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 65797-42-4 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 65797-42-4 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.

06Names and relationships

Associated parent compound

Bupivacaine; Mepivacaine

View API and impurity family

Other names

  • Bupivacaine EP Impurity B (HCl Salt)
  • N-(2, 6-Dimethylphenyl)piperidine-2-carboxamide hydrochloride
  • N-(2', 6'-Dinethylphenyl)-2-piperidinecarboxamide HCl
  • 2, 6-PIPECOLINOXYLIDIDE HYDROCHLORIDE
  • N-(2, 6-dimethylphenyl)piperidine-2 carboxamide
  • hydrochloride
  • N-(2', 6'-DIMETHYLPHENYL)-2-PIPERIDINECARBOXAMIDE HYDROCHLORIDE
  • 2-Piperidinecarboxamide, N-(2, 6-dimethylphenyl)-, monohydrochloride
  • Mepivacaine EP Impurity B
  • Bupivacaine Related Compound B
  • DTXSID201335103
  • N-(2,6-Dimethylphenyl)-2-piperidinecarboxamide hydrochloride (1:1)

Related records from the same parent family

07Documented 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.

08Sources