
Chemical identity
Simvastatin Impurity 16
CAS not listed · C30H51NO5
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-28112 |
|---|---|
| PubChem CID | 176476958 |
| Name | Simvastatin Impurity 16 |
| CAS RN | Not listed |
| Molecular formula | C30H51NO5 |
| Molecular weight | 505.7 g/mol |
| IUPAC name | [(1S,3R,7S,8S,8aR)-8-[(3R,5R)-7-[butyl(methyl)amino]-3,5-dihydroxy-7-oxoheptyl]-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl] 2,2-dimethylbutanoate |
| InChIKey | GTXCWVZVLSZOGK-ZNFHGHDDSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C30H51NO5 |
|---|---|
| InChIKey | GTXCWVZVLSZOGK-ZNFHGHDDSA-N |
| Ring count | 2 |
| Defined stereocentres | 7 |
| Unassigned stereocentres | 0 |
| SMILES | CCCCN(C)C(=O)C[C@@H](C[C@@H](CC[C@H]1[C@H](C=CC2=C[C@@H](C[C@@H]([C@H]12)OC(=O)C(C)(C)CC)C)C)O)O |
|---|---|
| InChI | InChI=1S/C30H51NO5/c1-8-10-15-31(7)27(34)19-24(33)18-23(32)13-14-25-21(4)11-12-22-16-20(3)17-26(28(22)25)36-29(35)30(5,6)9-2/h11-12,16,20-21,23-26,28,32-33H,8-10,13-15,17-19H2,1-7H3/t20-,21-,23+,24+,25-,26-,28-/m0/s1 |
03Stereochemistry
The published structure contains 7 defined and 0 unassigned tetrahedral stereocentres. 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
Simvastatin
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 176476958
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.
