
Chemical identity
Carprofen EP Impurity C
CAS 92841-21-9 · C14H12ClNO
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-09564 |
|---|---|
| PubChem CID | 15188600 |
| Name | Carprofen EP Impurity C |
| CAS RN | 92841-21-9 |
| Molecular formula | C14H12ClNO |
| Molecular weight | 245.71 g/mol |
| IUPAC name | (1RS)-1-(6-chloro-9H-carbazol-2-yl)ethanol |
| InChIKey | YDACEXNDEXNISI-UHFFFAOYSA-N |
02Structure identifiers

The parsed structure contains 3 rings, includes aromatic atoms, includes aliphatic carbon, contains at least one halogen atom. These statements are calculated from the published structure string.
| Defined stereocentres | 0 |
|---|---|
| Unassigned stereocentres | 1 |
| Ring count | 3 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC(C1=CC2=C(C=C1)C3=C(N2)C=CC(=C3)Cl)O |
|---|---|
| InChI | Not listed |
| Formula from structure | C14H12ClNO |
| Molecular weight from structure | 245.71 g/mol |
03Stereochemistry
The published structure contains 0 defined and 1 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
1 recordThese 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 / RCS | NO EXACT MATCH FOUND | CAS 92841-21-9 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 92841-21-9 has no exact match in the reviewed SCOMET list. |
| 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
Carprofen
View API and impurity familyOther names
- (10R,13S,17R)-17-acetyl-10,13-dimethyl-3-oxo-2,3,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-17-yl acetate
- 2-(1-Hydroxyethyl)-6-chlorocarbazole
- 92841-21-9
- 1-(6-chloro-9H-carbazol-2-yl)ethanol
- UNII-312NRK96Q9
- (1RS)-1-(6-Chloro-9H-carbazol-2-yl)ethanol
- 312NRK96Q9
- Carprofen for veterinary use impurity C [EP]
- 9H-Carbazole-2-methanol, 6-chloro-alpha-methyl-
- CARPROFEN FOR VETERINARY USE IMPURITY C [EP IMPURITY]
- RefChem:197522
- Carprofen for veterinary use impurity C
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 15188600
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.
