Chemical identity

Piroxicam EP Impurity B/ Piroxicam BP Impurity B / N-Desmethyl Piroxicam/ Piroxicam Related Compound B

CAS 65897-46-3 · C14H11N3O4S

01Identity

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

Lazychem IDLC-25446
PubChem CID54719424
NamePiroxicam EP Impurity B/ Piroxicam BP Impurity B / N-Desmethyl Piroxicam/ Piroxicam Related Compound B
CAS RN65897-46-3
Molecular formulaC14H11N3O4S
Molecular weight317.32 g/mol
IUPAC name4-Hydroxy-N-(pyridin-2-yl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide
InChIKeyXRXYFCIBSPQECM-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 54719424
Two-dimensional chemical structure of Piroxicam EP Impurity B/ Piroxicam BP Impurity B / N-Desmethyl Piroxicam/ Piroxicam Related Compound B, CAS 65897-46-3
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. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count3
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC1=CC=C2C(=C1)C(=C(NS2(=O)=O)C(=O)NC3=CC=CC=N3)O
InChINot listed
Formula from structureC14H11N3O4S
Molecular weight from structure317.32 g/mol

03India 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 65897-46-3 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 65897-46-3 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.

04Names and relationships

Associated parent compound

Piroxicam

View API and impurity family

Other names

  • Piroxicam EP Impurity B
  • N-Desmethyl Piroxicam
  • 4-Hydroxy-N-(pyridin-2- yl)-2H-1,2-benzothiazine-3- carboxamide 1,1-Dioxide
  • Piroxicam Related Compound B
  • Piroxicam BP Impurity B

Related records from the same parent family

05Documented 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.

06Sources