Chemical identity

Donepezil EP Impurity H (Free Base)

CAS 608511-44-0 · C24H27NO3

01Identity

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

Lazychem IDLC-13358
PubChem CID10150448
NameDonepezil EP Impurity H (Free Base)
CAS RN608511-44-0
Molecular formulaC24H27NO3
Molecular weight377.48 g/mol
IUPAC name(2RS)-2-[(1-Benzyl-1,2,3,6-tetrahydropyridin-4-yl)methyl]-5,6-dimethoxy-2,3-dihydro-1Hinden-1-one
InChIKeyBWOQFDUTOSAOIO-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 10150448
Two-dimensional chemical structure of Donepezil EP Impurity H (Free Base), CAS 608511-44-0
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

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

Defined stereocentres0
Unassigned stereocentres1
Ring count4
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESCOC1=C(C=C2C(=C1)CC(C2=O)CC3=CCN(CC3)CC4=CC=CC=C4)OC
InChINot listed
Formula from structureC24H27NO3
Molecular weight from structure377.48 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 608511-44-0 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 608511-44-0 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

  • 2,3-Dihydro-5,6-dimethoxy-2-[[1,2,3,6-tetrahydro-1-(phenylmethyl)-4-pyridinyl]methyl]-1H-inden-1-one
  • 608511-44-0
  • 2-((1-Benzyl-1,2,3,6-tetrahydropyridin-4-yl)methyl)-5,6-dimethoxy-2,3-dihydro-1H-inden-1-one
  • Donepezil Impurity 56
  • FM93KSF7Y9
  • SCHEMBL2406559
  • 1-Benzyl-4-[(5,6-dimethoxy-1-oxoindan-2-yl)methyl]-1,2,3,6-tetrahydropyridine
  • H59682
  • 1H-Inden-1-one, 2,3-dihydro-5,6-dimethoxy-2-[[1,2,3,6-tetrahydro-1-(phenylmethyl)-4-pyridinyl]methyl]-

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