Chemical identity

Quinine EP Impurity A/ Quinidine (Free Base)

CAS 56-54-2 · C20H24N2O2

01Identity

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

Lazychem IDLC-26452
PubChem CID441074
NameQuinine EP Impurity A/ Quinidine (Free Base)
CAS RN56-54-2
Molecular formulaC20H24N2O2
Molecular weight324.4 g/mol
IUPAC name(S)-[(2R,4S,5R)-5-ethenyl-1-azabicyclo[2.2.2]oct-2-yl](6-methoxyquinolin-4-yl)methanol
InChIKeyLOUPRKONTZGTKE-LHHVKLHASA-N

02Structure identifiers

2D structurePubChem CID 441074
Two-dimensional chemical structure of Quinine EP Impurity A/ Quinidine (Free Base), CAS 56-54-2
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 5 rings, includes aromatic atoms, includes aliphatic carbon, has 4 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres4
Unassigned stereocentres1
Ring count5
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESCOC1=CC2=C(C=CN=C2C=C1)[C@@H]([C@H]3C[C@@H]4CCN3C[C@@H]4C=C)O
InChINot listed
Formula from structureC20H24N2O2
Molecular weight from structure324.4 g/mol

03Stereochemistry

The published structure contains 4 defined and 1 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres4Structure assigned
Unassigned centres1Structure unspecified
Assignment statusPartially assignedExact published identity
Tetrahedral upper bound≤ 32Before symmetry reduction

Published same-connectivity configurations

3 records

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.

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 56-54-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 56-54-2 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

Quinine

View API and impurity family

Other names

  • Quinidine
  • Quinine EP Impurity A (Free Base)
  • (8R, 9S)-Quinidine
  • (9S)-6'-Methoxycinchonan-9-ol
  • alpha-(6-Methoxy-4-quinolyl)-5-vinyl-2-quinuclidinemethanol
  • (9S)-6-Methoxy-alpha-(5-vinyl-2-quinuclidinyl)-4-quinolinemethanol

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