
Chemical identity
Desacetyl Hydroxy Prasugrel Impurity
CAS 201049-74-3 · C18H18FNO2S
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-12328 |
|---|---|
| PubChem CID | 19919505 |
| Name | Desacetyl Hydroxy Prasugrel Impurity |
| CAS RN | 201049-74-3 |
| Molecular formula | C18H18FNO2S |
| Molecular weight | 331.40 g/mol |
| IUPAC name | 1-cyclopropyl-2-(2-fluorophenyl)-2-(2-hydroxy-6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)ethan-1-one |
| InChIKey | MPLQNQUWLWGOET-UHFFFAOYSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C18H18FNO2S |
|---|---|
| InChIKey | MPLQNQUWLWGOET-UHFFFAOYSA-N |
| Ring count | 4 |
| Defined stereocentres | 0 |
| Unassigned stereocentres | 1 |
| SMILES | O=C(C(N1CC2=C(CC1)SC(O)=C2)C3=C(F)C=CC=C3)C4CC4 |
|---|---|
| InChI | InChI=1S/C18H18FNO2S/c19-14-4-2-1-3-13(14)17(18(22)11-5-6-11)20-8-7-15-12(10-20)9-16(21)23-15/h1-4,9,11,17,21H,5-8,10H2 |
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 | NOT FOUND IN REVIEWED ENTRIES | CAS 201049-74-3 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 201049-74-3 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
05Names and relationships
Associated parent compound
Prasugrel
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 19919505
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.
