Chemical identity

Nitroso Perindopril EP impurity E

CAS not listed · C20H33N3O6

01Identity

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

Lazychem IDLC-23588
PubChem CID176477828
NameNitroso Perindopril EP impurity E
CAS RNNot listed
Molecular formulaC20H33N3O6
Molecular weight411.49 g/mol
IUPAC name(2S,3aS,7aS)-1-((S)-2-(((S)-1-isopropoxy-1-oxopentan-2-yl)(nitroso)amino)propanoyl)octahydro-1H-indole-2-carboxylic acid
InChIKeyXVWZTTMPZZMBLV-WOYTXXSLSA-N

02Structure identifiers

2D structurePubChem CID 176477828
Two-dimensional chemical structure of Nitroso Perindopril EP impurity E
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aliphatic carbon, has 5 defined stereocentres, contains an N-nitroso substructure. These statements are calculated from the published structure string.

Defined stereocentres5
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESCCC[C@@H](C(=O)OC(C)C)N([C@@H](C)C(=O)N1[C@H]2CCCC[C@H]2C[C@H]1C(=O)O)N=O
InChINot listed
Formula from structureC20H33N3O6
Molecular weight from structure411.49 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 FOUNDNo CAS number is available for an exact comparison.
SCOMETNO EXACT REVIEWED CAS MATCHNo CAS number is available for an exact comparison.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Perindopril

View API and impurity family

Other names

No synonyms are listed.

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