
Chemical identity
Rosuvastatin (6S)-Lactone Impurity
CAS 854898-47-8 · C22H26FN3O5S
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-27356 |
|---|---|
| PubChem CID | 125316091 |
| Name | Rosuvastatin (6S)-Lactone Impurity |
| CAS RN | 854898-47-8 |
| Molecular formula | C22H26FN3O5S |
| Molecular weight | 463.52 g/mol |
| IUPAC name | N-[(6S)-8-Fluoro-5,6-dihydro-4-(1-methylethyl)-6-[(2S,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]benzo[h]quinazolin-2-yl]-N-methylmethane sulfonamide |
| InChIKey | VLAHUUGOOLLUEH-SKDZVZGDSA-N |
02Structure identifiers

The parsed structure contains 4 rings, includes aromatic atoms, includes aliphatic carbon, has 3 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.
| Defined stereocentres | 3 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 4 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC(C)C1=NC(=NC2=C1C[C@@H](C3=C2C=CC(=C3)F)[C@@H]4C[C@H](CC(=O)O4)O)N(C)S(=O)(=O)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C22H26FN3O5S |
| Molecular weight from structure | 463.52 g/mol |
03Stereochemistry
The published structure contains 3 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
2 recordsThese records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.


Rosuvastatin (6R)-Lactone Impurity
CAS 854898-46-7
VLAHUUGOOLLUEH-QBIMZIAESA-N
3 defined, 0 unassigned centres
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 854898-47-8 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 854898-47-8 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
Rosuvastatin
View API and impurity familyOther names
- N-[(6S)-8-Fluoro-5,6-dihydro-4-(1-methylethyl)-6-[(2S,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]benzo[h]quinazolin-2-yl]-N-methylmethanesulfonamide
- 854898-47-8
- N-[(6S)-8-fluoro-6-[(2S,4R)-4-hydroxy-6-oxooxan-2-yl]-4-propan-2-yl-5,6-dihydrobenzo[h]quinazolin-2-yl]-N-methylmethanesulfonamide
- Rosuvastatin Impurity 4
- Rosuvastatin (6S)-Lactone Impurity
- N-[(6S)-8-Fluoro-5,6-dihydro-4-(1-methylethyl)-6-[(2S,4R)-tetrahydro-4-hydroxy-6-oxo-2H-pyran-2-yl]b
- DB-265996
- CS-0165294
- N-((S)-8-fluoro-6-((2S,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl)-4-isopropyl-5,6-dihydrobenzo[h]quinazolin-2-yl)-N-methylmethanesulfonamide
- N-((S)-8-fluoro-6-((2S,4R)-4-hydroxy-6-oxotetrahydro-2H-pyran-2-yl)-4-isopropyl-5,6-dihydrobenzo[h]quinazolin-2-yl)-N-methylmethanesulfonamide? (Rosuvastatin Impurity pound(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 125316091
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.
