Chemical identity

Tamsulosin EP Impurity B (Free Base)

CAS 112101-81-2 · C10H16N2O3S

01Identity

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

Lazychem IDLC-28822
PubChem CID10060387
NameTamsulosin EP Impurity B (Free Base)
CAS RN112101-81-2
Molecular formulaC10H16N2O3S
Molecular weight244.31 g/mol
IUPAC name5-[(2R)-2-Aminopropyl]-2-methoxybenzenesulfonamide
InChIKeyIORITYIZDHJCGT-SSDOTTSWSA-N

02Structure identifiers

2D structurePubChem CID 10060387
Two-dimensional chemical structure of Tamsulosin EP Impurity B (Free Base), CAS 112101-81-2
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 1 ring, includes aromatic atoms, includes aliphatic carbon, has 1 defined stereocentre. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count1
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@H](CC1=CC(=C(C=C1)OC)S(=O)(=O)N)N
InChINot listed
Formula from structureC10H16N2O3S
Molecular weight from structure244.31 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

3 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 112101-81-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 112101-81-2 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

  • (R)-5-(2-Aminopropyl)-2-methoxybenzenesulfonamide
  • 5-(2-aminopropyl)-2-methoxybenzene-1-sulfonamide
  • Tamsulosin Amine

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