
Chemical identity
Carteolol HCl EP Impurity D
CAS 51781-13-6 · C12H14ClNO3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-09573 |
|---|---|
| PubChem CID | 15571791 |
| Name | Carteolol HCl EP Impurity D |
| CAS RN | 51781-13-6 |
| Molecular formula | C12H14ClNO3 |
| Molecular weight | 255.70 g/mol |
| IUPAC name | 5-[(2RS)-3-chloro-2-hydroxypropoxy]-3,4-dihydroquinolin-2(1H)-one, |
| InChIKey | BYCWTLNAPPAPAN-UHFFFAOYSA-N |
02Structure identifiers

The parsed structure contains 2 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 | 2 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | C1CC(=O)NC2=C1C(=CC=C2)OCC(CCl)O |
|---|---|
| InChI | Not listed |
| Formula from structure | C12H14ClNO3 |
| Molecular weight from structure | 255.70 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 51781-13-6 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 51781-13-6 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
Carteolol
View API and impurity familyOther names
- 2(1H)-Quinolinone, 5-(3-chloro-2-hydroxypropoxy)-3,4-dihydro-
- 51781-13-6
- Carteolol HCl EP Impurity D
- YJ3B2VF7CQ
- Carteolol EP Impurity D
- UNII-YJ3B2VF7CQ
- 5-(3-Chloro-2-hydroxypropoxy)-3,4-dihydro-2(1H)-quinolinone
- Carteolol hydrochloride impurity D [EP]
- 5-(3-chloro-2-hydroxypropoxy)-3,4-dihydro-1H-quinolin-2-one
- 5-(3-Chloro-2-hydroxypropoxy)-3,4-dihydroquinolin-2(1H)-one
- 5-((2RS)-3-Chloro-2-hydroxypropoxy)-3,4-dihydroquinolin-2(1H)-one
- SCHEMBL9336314
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 15571791
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.
