Chemical identity

Omeprazole EP Impurity A / Omeprazole BP Impurity A / Esomeprazole EP Impurity A/ Omeprazole Related Compound B

CAS 37052-78-1 · C8H8N2OS

01Identity

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

Lazychem IDLC-24098
PubChem CID665603
NameOmeprazole EP Impurity A / Omeprazole BP Impurity A / Esomeprazole EP Impurity A/ Omeprazole Related Compound B
CAS RN37052-78-1
Molecular formulaC8H8N2OS
Molecular weight180.23 g/mol
IUPAC name5-Methoxy-1H-benzimidazole-2-thiol
InChIKeyKOFBRZWVWJCLGM-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 665603
Two-dimensional chemical structure of Omeprazole EP Impurity A / Omeprazole BP Impurity A / Esomeprazole EP Impurity A/ Omeprazole Related Compound B, CAS 37052-78-1
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aromatic atoms, includes aliphatic carbon. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCOC1=CC2=C(C=C1)NC(=S)N2
InChINot listed
Formula from structureC8H8N2OS
Molecular weight from structure180.23 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 37052-78-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 37052-78-1 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

Omeprazole / Esomeprazole

View API and impurity family

Other names

  • Omeprazole EP Impurity A
  • 1,3-Dihydro-5-methoxy-2H-benzimidazole-2-thione
  • 2-Mercapto-5-methoxy-1H-benzimidazole
  • 2-Mercapto-5-methoxybenzimidazole
  • 5-Methoxy-2-benzimidazolethiol
  • Omeprazole BP Impurity A
  • Esomeprazole EP Impurity A
  • Omeprazole Related Compound 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