
Chemical identity
Dorzolamide Impurity 21
CAS not listed · C10H14N2O5S3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-43664 |
|---|---|
| PubChem CID | 15647035 |
| Name | Dorzolamide Impurity 21 |
| CAS RN | Not listed |
| Molecular formula | C10H14N2O5S3 |
| Molecular weight | 338.4 g/mol |
| IUPAC name | N-[(4R,6R)-6-methyl-7,7-dioxo-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl]acetamide |
| InChIKey | MQRCTNZVQVRCRD-SVGQVSJJSA-N |
02Structure identifiers

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 stereocentres | 2 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 2 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | C[C@@H]1C[C@H](C2=C(S1(=O)=O)SC(=C2)S(=O)(=O)N)NC(=O)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C10H14N2O5S3 |
| Molecular weight from structure | 338.4 g/mol |
03Stereochemistry
The published structure contains 2 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
3 recordsThese records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.


Dorzolamide N-Acetyl Analog
CAS 147200-03-1
MQRCTNZVQVRCRD-XNCJUZBTSA-N
2 defined, 0 unassigned centres

N-Desethyl N-Acetyl Dorzolamide
CAS 147128-79-8
MQRCTNZVQVRCRD-YLWLKBPMSA-N
2 defined, 0 unassigned centres
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 / RCS | NO EXACT MATCH FOUND | No CAS number is available for an exact comparison. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | No CAS number is available for an exact comparison. |
| Review date | 2026-08-01 | Recheck the current official instruments for the material, concentration, activity and date in question. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · reviewed 2026-08-01
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · reviewed 2026-08-01
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · reviewed 2026-08-01
05Names and relationships
Associated parent compound
No parent compound is listed.
Other names
No synonyms are listed.
06Documented history
Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.
No verified discovery, first report, occurrence, use or issue event is currently available for this identity.
07Sources
- S01PubChem compound record, CID 15647035
Names and machine-readable chemical identity properties.
- S02NCBI website and molecular data policies
Reuse policy for NCBI molecular data. This page does not reproduce vendor descriptions or contributed narrative text.
- S03Narcotic Drugs and Psychotropic Substances Act, 1985, Schedule
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S04Controlled-substances notifications and amendments
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S05Appendix 3, SCOMET List
Directorate General of Foreign Trade, Government of India. Used for the exact-compound India status shown on this page.
