
Chemical identity
N-Nitroso Lurasidone Impurity 1
CAS not listed · C21H32N4O3
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-22036 |
|---|---|
| PubChem CID | 176473663 |
| Name | N-Nitroso Lurasidone Impurity 1 |
| CAS RN | Not listed |
| Molecular formula | C21H32N4O3 |
| Molecular weight | 388.5 g/mol |
| IUPAC name | (3aR,4S,7R,7aS)-2-(((1R,2R)-2-((4-Nitrosopiperazin-1-yl)methyl)cyclohexyl)methyl)hexahydro-1H-4,7-methanoisoindole-1,3(2H)-dione |
| InChIKey | XVWNHMMQWVWNRF-BDPHEOEISA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C21H32N4O3 |
|---|---|
| InChIKey | XVWNHMMQWVWNRF-BDPHEOEISA-N |
| Ring count | 5 |
| Defined stereocentres | 6 |
| Unassigned stereocentres | 0 |
| SMILES | C1CC[C@H]([C@@H](C1)CN2CCN(CC2)N=O)CN3C(=O)[C@H]4[C@@H]5CC[C@@H](C5)[C@H]4C3=O |
|---|---|
| InChI | InChI=1S/C21H32N4O3/c26-20-18-14-5-6-15(11-14)19(18)21(27)25(20)13-17-4-2-1-3-16(17)12-23-7-9-24(22-28)10-8-23/h14-19H,1-13H2/t14-,15+,16-,17-,18+,19-/m0/s1 |
03Stereochemistry
The published structure contains 6 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
Lurasidone
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 176473663
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.
