Chemical identity

Trandolapril EP Impurity D / Trandolapril Related Compound D /Trandolapril Diketopiperazine (Free Base)

CAS 149881-40-3 · C24H32N2O4

01Identity

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

Lazychem IDLC-29956
PubChem CID59762644
NameTrandolapril EP Impurity D / Trandolapril Related Compound D /Trandolapril Diketopiperazine (Free Base)
CAS RN149881-40-3
Molecular formulaC24H32N2O4
Molecular weight412.52 g/mol
IUPAC nameEthyl (2S)-2-[(3S,5aS,9aR,10aS)-3-methyl-1,4-dioxodecahydropyrazino[1,2-a]indol-2(1H)-yl]-4-phenylbutanoate
InChIKeyAKUCMKAPHCGRFV-WTNASJBWSA-N

02Structure identifiers

2D structurePubChem CID 59762644
Two-dimensional chemical structure of Trandolapril EP Impurity D / Trandolapril Related Compound D /Trandolapril Diketopiperazine (Free Base), CAS 149881-40-3
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, has 5 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres5
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCOC(=O)[C@H](CCC1=CC=CC=C1)N2[C@H](C(=O)N3[C@H]4CCCC[C@@H]4C[C@H]3C2=O)C
InChINot listed
Formula from structureC24H32N2O4
Molecular weight from structure412.52 g/mol

03Stereochemistry

The published structure contains 5 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres5Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 32Before 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 149881-40-3 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 149881-40-3 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

Trandolapril

View API and impurity family

Other names

  • Trandolapril EP Impurity D (Free Base)
  • Trandolapril Related Compound D
  • Trandolapril Diketopiperazine

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