
Chemical identity
Eletriptan Impurity A
CAS 143322-55-8 · C14H18N2
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-13866 |
|---|---|
| PubChem CID | 44397420 |
| Name | Eletriptan Impurity A |
| CAS RN | 143322-55-8 |
| Molecular formula | C14H18N2 |
| Molecular weight | 214.31 |
| IUPAC name | (R)-3-((1-Methylpyrrolidin-2-yl) methyl)-1H-indole |
| InChIKey | HCTCDEAMCNSARD-GFCCVEGCSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C14H18N2 |
|---|---|
| InChIKey | HCTCDEAMCNSARD-GFCCVEGCSA-N |
| Ring count | 3 |
| Defined stereocentres | 1 |
| Unassigned stereocentres | 0 |
| SMILES | CN1CCC[C@@H]1CC2=CNC3=CC=CC=C32 |
|---|---|
| InChI | InChI=1S/C14H18N2/c1-16-8-4-5-12(16)9-11-10-15-14-7-3-2-6-13(11)14/h2-3,6-7,10,12,15H,4-5,8-9H2,1H3/t12-/m1/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.
04Possible N-nitroso structures
A record-level structural review indicates a possible N-nitroso candidate. This is not a confirmed impurity, formation prediction or analytical finding.
A structural result alone does not establish that a nitrosamine forms. A process-specific and analytical assessment is required.
05India 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 | CAS 143322-55-8 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated. |
|---|---|---|
| SCOMET | NOT FOUND IN REVIEWED CAS ENTRIES | CAS 143322-55-8 was not found in the reviewed exact-CAS mapping. 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
06Names and relationships
Associated parent compound
Eletriptan
View API and impurity familyOther names
- (R)-3-((1-methylpyrrolidin-2-yl)methyl)-1H-indole
- (R)- 3-[(1-Methyl-2-pyrrolidinyl)methyl]-1H-Indole
- 3-[[(2R)-1-methylpyrrolidin-2-yl]methyl]-1H-indole
- 3-((1-Methylpyrrolidin-2-yl)methyl)-1H-indole, (R)-
- 3-[[(2R)-1-Methyl-2-pyrrolidinyl]methyl]-1H-Indole
- UNII-FPV89QBL57
07Documented 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.
08Sources
- S01PubChem compound record, CID 44397420
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.
