(R)-Mephenytoin
(R)-甲苯妥英
Also known as: (R)-(-)-Mephenytoin, (-)-Mephenytoin, (5R)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione, (R)-5-Ethyl-3-methyl-5-phenylhydantoin, (R)-(-)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione, (R)-(-)-5-Ethyl-3-methyl-5-phenylhydantoin, (R)-5-Ethyl-3-methyl-5-phenylimidazolidine-2,4-dione
(R)-Mephenytoin (CAS 71140-51-7) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C12H14N2O2 and a molecular weight of 218.25200 g/mol. It is also known as (R)-(-)-Mephenytoin, (-)-Mephenytoin and (5R)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione. Key properties include a melting point of 137-138ºC and a density of 1.154g/cm3. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 71140-51-7
- Jingsj CID
- J-1958360-2
- Molecular Formula
- C12H14N2O2
- Chinese Name
- (R)-甲苯妥英
- Molecular Weight
- 218.25200 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 137-138ºC |
|---|---|
| Density | 1.154g/cm3 |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of (R)-Mephenytoin?
The CAS number of (R)-Mephenytoin is 71140-51-7.
What are the molecular formula and molecular weight of (R)-Mephenytoin?
(R)-Mephenytoin has molecular formula C12H14N2O2 and molecular weight 218.25200 g/mol.
Is (R)-Mephenytoin hazardous?
(R)-Mephenytoin has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(R)-Mephenytoin (CAS 71140-51-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1958360-2 (accessed 2026-10-23).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.