(R)-(−)-Mephenytoin
(R)-(−)-Mephenytoin (CAS: 71140-51-7) is a bioactive small molecule with the empirical formula C12H14N2O2 and a molecular weight of 218.25 g/mol. This off-white solid is soluble in acetone, chloroform, and methanol. Primarily utilized in research settings, it is associated with cell biology, cell signaling, neuroscience, and drug metabolism studies. (R)-(−)-Mephenytoin is supplied by Tech Serve Solutions for laboratory and research applications.
- IUPAC
- (R)-(−)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione,(R)-(−)-5-Ethyl-3-methyl-5-phenylhydantoin
- Synonyms
- (R)-(−)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione, (R)-(−)-5-Ethyl-3-methyl-5-phenylhydantoin

Cellular Research
Used in studies concerning cell biology and cell signaling pathways. Its molecular structure may be relevant for investigating cellular processes and responses.
Neuroscience Investigations
Applicable in neuroscience research, potentially for exploring neural pathways or neurotransmitter interactions. Its bioactive nature makes it a candidate for studying neurological functions.
Drug Metabolism Studies
A valuable tool for research into drug and xenobiotic metabolism. It can be used to investigate metabolic pathways, enzyme activity, and drug interactions.
Bioactive Small Molecule Research
Serves as a reference compound or tool in the broader field of bioactive small molecule research, aiding in the understanding of biological activities.
| Molecular weight | 218.25 |
|---|---|
| Empirical formula | C12H14N2O2 |
| Colour | off-white |
| Solubility | acetone: solublechloroform: solublemethanol: soluble |
| Storage temperature | 2-8°C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (R)-(−)-Mephenytoin used for?
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(R)-(−)-Mephenytoin is primarily used in research settings, including studies in cell biology, cell signaling, neuroscience, and drug metabolism.
What is the CAS number and formula for (R)-(−)-Mephenytoin?
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The CAS number for (R)-(−)-Mephenytoin is 71140-51-7, and its empirical formula is C12H14N2O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (R)-(−)-Mephenytoin for laboratory and research use. The specific grade and purity are available upon request and detailed on the Certificate of Analysis. We do not represent this product as USP, BP, or EP grade.
How should (R)-(−)-Mephenytoin be handled?
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(R)-(−)-Mephenytoin is classified with GHS07 symbol and a Warning signal word, with hazards including H302 (Harmful if swallowed), H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used. Handle in a well-ventilated area.
Is (R)-(−)-Mephenytoin available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including (R)-(−)-Mephenytoin, and can facilitate international shipments.
How can I request a quote or sample for (R)-(−)-Mephenytoin?
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To request a quote or sample for (R)-(−)-Mephenytoin, please contact our sales department through the website or by phone, providing the product name and CAS number.
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