Chemical identity

Rivaroxaban EP Impurity A/ ent-Rivaroxaban/ Rivaroxaban R-Isomer/ Rivaroxaban R-Enantiomer (Free Base)

CAS 865479-71-6 · C19H18CIN3O5S

01Identity

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

Lazychem IDLC-27168
PubChem CID11524901
NameRivaroxaban EP Impurity A/ ent-Rivaroxaban/ Rivaroxaban R-Isomer/ Rivaroxaban R-Enantiomer (Free Base)
CAS RN865479-71-6
Molecular formulaC19H18CIN3O5S
Molecular weight435.88 g/mol
IUPAC name5-Chloro-N-[[(5R)-2-oxo-3-[4-(3-oxomorpholin-4-yl)phenyl]-1,3-oxazolidin-5-yl]methyl]thiophene-2-carboxamide
InChIKeyKGFYHTZWPPHNLQ-CQSZACIVSA-N

02Structure identifiers

2D structurePubChem CID 11524901
Two-dimensional chemical structure of Rivaroxaban EP Impurity A/ ent-Rivaroxaban/ Rivaroxaban R-Isomer/ Rivaroxaban R-Enantiomer (Free Base), CAS 865479-71-6
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 1 defined stereocentre, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC1COCC(=O)N1C2=CC=C(C=C2)N3C[C@H](OC3=O)CNC(=O)C4=CC=C(S4)Cl
InChINot listed
Formula from structureC19H18ClN3O5S
Molecular weight from structure435.88 g/mol

03Stereochemistry

The published structure contains 1 defined and 0 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.

Defined centres1Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact 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 865479-71-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 865479-71-6 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

Rivaroxaban

View API and impurity family

Other names

  • Rivaroxaban EP Impurity A
  • ent-Rivaroxaban
  • Rivaroxaban R-Isomer
  • Rivaroxaban R-Enantiomer

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