
Chemical identity
Indinavir EP Impurity D (Free Base)
CAS not listed · C27H36N4O3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-17220 |
|---|---|
| PubChem CID | 72941947 |
| Name | Indinavir EP Impurity D (Free Base) |
| CAS RN | Not listed |
| Molecular formula | C27H36N4O3 |
| Molecular weight | 464.60 g/mol |
| IUPAC name | (3R,5S)-3-Benzyl-5-[[(2S)-2-[(1,1-dimethylethyl)-carbamoyl]-4-(pyridin-3-ylmethyl)piperazin-1-yl]methyl]-4,5-dihydrofuran-2(3H)-one |
| InChIKey | MEAYEAZWSJPITC-SGNDLWITSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C27H36N4O3 |
|---|---|
| InChIKey | MEAYEAZWSJPITC-SGNDLWITSA-N |
| Ring count | 4 |
| Defined stereocentres | 3 |
| Unassigned stereocentres | 0 |
| SMILES | CC(C)(C)NC(=O)[C@@H]1CN(CCN1C[C@@H]2C[C@H](C(=O)O2)CC3=CC=CC=C3)CC4=CN=CC=C4 |
|---|---|
| InChI | InChI=1S/C27H36N4O3/c1-27(2,3)29-25(32)24-19-30(17-21-10-7-11-28-16-21)12-13-31(24)18-23-15-22(26(33)34-23)14-20-8-5-4-6-9-20/h4-11,16,22-24H,12-15,17-19H2,1-3H3,(H,29,32)/t22-,23+,24+/m1/s1 |
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
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
Indinavir
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 72941947
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.
