Chemical identity

Dorzolamide EP Impurity D (Free Base)

CAS 154154-90-2 · C8H12N2O4S3

01Identity

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

Lazychem IDLC-13418
PubChem CID3074858
NameDorzolamide EP Impurity D (Free Base)
CAS RN154154-90-2
Molecular formulaC8H12N2O4S3
Molecular weight296.39 g/mol
IUPAC name(4S,6S)-4-Amino-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide
InChIKeyHVURBRAECUMAHY-NJGYIYPDSA-N

02Structure identifiers

2D structurePubChem CID 3074858
Two-dimensional chemical structure of Dorzolamide EP Impurity D (Free Base), CAS 154154-90-2
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, has 2 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres2
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@H]1C[C@@H](C2=C(S1(=O)=O)SC(=C2)S(=O)(=O)N)N
InChINot listed
Formula from structureC8H12N2O4S3
Molecular weight from structure296.39 g/mol

03Stereochemistry

The published structure contains 2 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres2Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 4Before 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 154154-90-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 154154-90-2 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

Dorzolamide

View API and impurity family

Other names

  • N-Desethyl Dorzolamide
  • Dorzolamide Related Compound D

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