Chemical identity

Donepezil EP Impurity D / Donepezil IH Impurity A / Donepezil Pyridine Analog

CAS 4803-57-0 · C17H17NO3

01Identity

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

Lazychem IDLC-13354
PubChem CID10085230
NameDonepezil EP Impurity D / Donepezil IH Impurity A / Donepezil Pyridine Analog
CAS RN4803-57-0
Molecular formulaC17H17NO3
Molecular weight283.32 g/mol
IUPAC name5,6-Dimethoxy-2-(pyridin-4-ylmethyl)indan-1-one
InChIKeyRGPDMDJBVKHZFW-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 10085230
Two-dimensional chemical structure of Donepezil EP Impurity D / Donepezil IH Impurity A / Donepezil Pyridine Analog, CAS 4803-57-0
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 3 rings, includes aromatic atoms, includes aliphatic carbon. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres1
Ring count3
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCOC1=C(C=C2C(=C1)CC(C2=O)CC3=CC=NC=C3)OC
InChINot listed
Formula from structureC17H17NO3
Molecular weight from structure283.32 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.

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 4803-57-0 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 4803-57-0 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

Donepezil

View API and impurity family

Other names

  • Donepezil EP Impurity D
  • Donepezil IH Impurity A
  • Donepezil Pyridine Analog
  • 2, 3-Dihydro-5, 6-dimethoxy-2-(4-pyridinylmethyl)-1H-inden-1-one
  • 2-(4-Pyridylmethyl)-5, 6-dimethoxy-1-indanone

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