
Chemical identity
Rotigotine EP Impurity I (HCl Salt)
CAS not listed · C26H32ClNO3S2
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-27537 |
|---|---|
| PubChem CID | 176451673 |
| Name | Rotigotine EP Impurity I (HCl Salt) |
| CAS RN | Not listed |
| Molecular formula | C26H32ClNO3S2 |
| Molecular weight | 506.12 g/mol |
| IUPAC name | (S)-6-(propyl(2-(thiophen-2-yl)ethyl)amino)-5,6,7,8-tetrahydronaphthalen-1-yl 4-methylbenzenesulfonate hydrochloride |
| InChIKey | SJSDBCYGNYYENH-FTBISJDPSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C26H32ClNO3S2 |
|---|---|
| InChIKey | SJSDBCYGNYYENH-FTBISJDPSA-N |
| Ring count | 4 |
| Defined stereocentres | 1 |
| Unassigned stereocentres | 0 |
| SMILES | CCCN(CCC1=CC=CS1)[C@H]2CCC3=C(C2)C=CC=C3OS(=O)(=O)C4=CC=C(C=C4)C.Cl |
|---|---|
| InChI | InChI=1S/C26H31NO3S2.ClH/c1-3-16-27(17-15-23-7-5-18-31-23)22-11-14-25-21(19-22)6-4-8-26(25)30-32(28,29)24-12-9-20(2)10-13-24;/h4-10,12-13,18,22H,3,11,14-17,19H2,1-2H3;1H/t22-;/m0./s1 |
03Stereochemistry
The published structure contains 1 defined and 0 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 | NOT FOUND IN REVIEWED ENTRIES | No CAS number is available for an exact comparison. Generic and analogue entries were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | No CAS number is available for an exact comparison. Generic and analogue entries were not evaluated. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · source version 1985-09-16
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · source version 2026-03-11
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · source version 2024-09-02
05Names and relationships
Associated parent compound
Rotigotine
View API and impurity familyOther 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 176451673
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.
