Chemical identity

Tamsulosin EP Impurity A (free base)

CAS 918867-88-6 · C30H40N2O7S

01Identity

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

Lazychem IDLC-28820
PubChem CID16035220
NameTamsulosin EP Impurity A (free base)
CAS RN918867-88-6
Molecular formulaC30H40N2O7S
Molecular weight572.71 g/mol
IUPAC name5-[(2R)-2-[bis[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxy benzene sulfonamide
InChIKeyOTXBFJHUSODSBC-HSZRJFAPSA-N

02Structure identifiers

2D structurePubChem CID 16035220
Two-dimensional chemical structure of Tamsulosin EP Impurity A (free base), CAS 918867-88-6
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, has 1 defined stereocentre. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count3
Secondary amines0
Tertiary amines1
N-methyl amine sites0
SMILESCCOC1=CC=CC=C1OCCN(CCOC2=CC=CC=C2OCC)[C@H](C)CC3=CC(=C(C=C3)OC)S(=O)(=O)N
InChINot listed
Formula from structureC30H40N2O7S
Molecular weight from structure572.71 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

2 records

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.

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 918867-88-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 918867-88-6 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

Tamsulosin

View API and impurity family

Other names

  • Tamsulosin EP Impurity A
  • N-[2-(2-Ethoxyphenoxy)ethyl]-(R)-Tamsulosin
  • 918867-88-6
  • 6G57A9FA8E
  • UNII-6G57A9FA8E
  • (R)-5-(2-(Bis(2-(2-ethoxyphenoxy)ethyl)amino)propyl)-2-methoxybenzenesulfonamide
  • 5-((2R)-2-(Bis(2-(2-ethoxyphenoxy)ethyl)amino)propyl)-2-methoxybenzenesulfonamide
  • 5-((R)-2-(Bis-(2-(2-ethoxyphenoxy)ethyl)amino)propyl)-2-methoxybenzenesulfonamide
  • Benzenesulfonamide, 5-((2R)-2-(bis(2-(2-ethoxyphenoxy)ethyl)amino)propyl)-2-methoxy-
  • 5-[(2R)-2-[Bis[2-(2-ethoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzenesulfonamide
  • 5-((R)-2-[Bis-[2-(2-ethoxyphenoxy)ethyl]amino]propyl)-2-methoxybenzenesulfonamide
  • Tamsulosin Impurity 58

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