
Chemical identity
Rosuvastatin Impurity 45
CAS 1821422-50-7 · C29H40FN3O6S
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-27419 |
|---|---|
| PubChem CID | 98047512 |
| Name | Rosuvastatin Impurity 45 |
| CAS RN | 1821422-50-7 |
| Molecular formula | C29H40FN3O6S |
| Molecular weight | 577.71 g/mol |
| IUPAC name | tert-butyl 2-[(4R,6S)-6-[(Z)-2-[4-(4-fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-propan-2-ylpyrimidin-5-yl]ethenyl]-2,2-dimethyl-1,3-dioxan-4-yl]acetate |
| InChIKey | WIFPCEOJTKZGSA-IEHPJGJUSA-N |
02Structure identifiers

The parsed structure contains 3 rings, includes aromatic atoms, includes aliphatic carbon, has 2 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.
| Defined stereocentres | 2 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 3 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | CC(C)C1=NC(=NC(=C1/C=C\[C@@H]2C[C@@H](OC(O2)(C)C)CC(=O)OC(C)(C)C)C3=CC=C(C=C3)F)N(C)S(=O)(=O)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C29H40FN3O6S |
| Molecular weight from structure | 577.71 g/mol |
03Stereochemistry
The published structure contains 2 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
6 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.


3-epi Rosuvastatin t-Butyl Ester Acetonide
CAS 1378943-63-5
WIFPCEOJTKZGSA-PPXNOBOXSA-N
2 defined, 0 unassigned centres

Rosuvastatin EP Impurity F / Rosuvastatin Acetonide t-Butyl Ester /Rosuvastatin Related Compound C
CAS 289042-12-2
WIFPCEOJTKZGSA-UQECUQMJSA-N
2 defined, 0 unassigned centres


Tert-butyl 2-((4R,6R)-6-((E)-2-(4-(4-fluorophenyl)-6-isopropyl-2-(N-methylmethylsulfonamido)pyrimidin-5-yl)vinyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate/ Rosuvastatin KSM (4R,6R)-Isomer
CAS 2758676-77-4
WIFPCEOJTKZGSA-NPTPTYOFSA-N
2 defined, 0 unassigned centres
![Two-dimensional chemical structure of Tert-Butyl 2-[(4R,6R)-6-[(Z)-2-[4-(4-fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-propan-2-ylpyrimidin-5-yl]ethenyl]-2,2-dimethyl-1,3-dioxan-4-yl]acetate](/structures/pubchem/163202857-300.png)
Tert-Butyl 2-[(4R,6R)-6-[(Z)-2-[4-(4-fluorophenyl)-2-[methyl(methylsulfonyl)amino]-6-propan-2-ylpyrimidin-5-yl]ethenyl]-2,2-dimethyl-1,3-dioxan-4-yl]acetate
CAS not listed
WIFPCEOJTKZGSA-DBAYQAHQSA-N
2 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 1821422-50-7 has no exact match in the reviewed published schedule. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | CAS 1821422-50-7 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
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 98047512
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.
