Chemical identity

Pimobendan EP Impurity A/ Pimobendan Related Compound A

CAS 2138391-23-6 · C19H18N2O4

01Identity

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

Lazychem IDLC-25292
PubChem CID134812044
NamePimobendan EP Impurity A/ Pimobendan Related Compound A
CAS RN2138391-23-6
Molecular formulaC19H18N2O4
Molecular weight338.36 g/mol
IUPAC name(3RS)-4-[2-(4-Methoxyphenyl)-1H-benzimidazol-5-yl]-3-methyl-4-oxobutanoic Acid
InChIKeyRDMACYIXYRJJNE-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 134812044
Two-dimensional chemical structure of Pimobendan EP Impurity A/ Pimobendan Related Compound A, CAS 2138391-23-6
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
SMILESCC(CC(=O)O)C(=O)C1=CC2=C(C=C1)N=C(N2)C3=CC=C(C=C3)OC
InChINot listed
Formula from structureC19H18N2O4
Molecular weight from structure338.36 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 2138391-23-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 2138391-23-6 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

Pimobendan

View API and impurity family

Other names

  • Pimobendan EP Impurity A
  • 1H-Benzimidazole-6-butanoic acid, 2-(4-methoxyphenyl)-beta-methyl-gamma-oxo-
  • Pimobendan Related Compound A
  • 4-(2-(4-Methoxyphenyl)-1H-benzimidazol-5-yl)-3-methyl-4-oxobutanoic acid
  • 2138391-23-6
  • M47SB47X19
  • UNII-M47SB47X19
  • 4-(2-(4-Methoxyphenyl)-1H-benzo[d]imidazol-6-yl)-3-methyl-4-oxobutanoic acid
  • Pimobendan Impurity 2
  • Pimobendan Impurity 7
  • SCHEMBL28677930
  • SCHEMBL30678038

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