
Chemical identity
Mephenytoin, (+)-
CAS not listed · C12H14N2O2
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-116328 |
|---|---|
| PubChem CID | 107921 |
| Name | Mephenytoin, (+)- |
| CAS RN | Not listed |
| Molecular formula | C12H14N2O2 |
| Molecular weight | 218.25 g/mol |
| IUPAC name | (5S)-5-ethyl-3-methyl-5-phenylimidazolidine-2,4-dione |
| InChIKey | GMHKMTDVRCWUDX-LBPRGKRZSA-N |
02Structure identifiers

Structure facts for this exact identity.
| Molecular formula | C12H14N2O2 |
|---|---|
| InChIKey | GMHKMTDVRCWUDX-LBPRGKRZSA-N |
| Ring count | 2 |
| Defined stereocentres | 1 |
| Unassigned stereocentres | 0 |
| SMILES | CC[C@@]1(C(=O)N(C(=O)N1)C)C2=CC=CC=C2 |
|---|---|
| InChI | InChI=1S/C12H14N2O2/c1-3-12(9-7-5-4-6-8-9)10(15)14(2)11(16)13-12/h4-8H,3H2,1-2H3,(H,13,16)/t12-/m0/s1 |
03Stereochemistry
The published structure contains 1 defined and 0 unassigned tetrahedral stereocentre. The exact wedge-and-dash depiction is shown above.
Published same-connectivity configurations
3 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.
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
No parent compound is listed.
Other 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 107921
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.


