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Merck
CN

UC177

(±)-Mephenytoin

Synonym(s):

(±)-5-Ethyl-3-methyl-5-phenyl-2,4-imidazolidinedione, (±)-5-Ethyl-3-methyl-5-phenylhydantoin

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About This Item

Empirical Formula (Hill Notation):
C12H14N2O2
CAS Number:
50-12-4
Molecular Weight:
218.25
UNSPSC Code:
12161501
PubChem Substance ID:
329827653
EC Number:
200-012-8
MDL number:
MFCD00022407
Form:
crystals
Quality level:
200

Key Documents

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InChI key

GMHKMTDVRCWUDX-UHFFFAOYSA-N

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)

SMILES string

CCC1(NC(=O)N(C)C1=O)c2ccccc2

form

crystals

color

off-white

mp

115-118 °C, 135-137 °C

solubility

DMSO: soluble

storage temp.

2-8°C

Quality Level

200

Gene Information

human ... SCN10A(6336), SCN11A(11280), SCN1A(6323), SCN2A(6326), SCN3A(6328), SCN4A(6329), SCN5A(6331), SCN7A(6332), SCN8A(6334), SCN9A(6335)

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Biochem/physiol Actions

CYP2B6 and CYP2C19 substrate; anticonvulsive, antiepileptic.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Preparation Note

(±)-Mephenytoin is soluble in DMSO.

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
561-020-2V
561-020-2
023M3904V
023M3904
561-20-2V

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Doaa A Elsherbiny et al.
Journal of pharmacokinetics and pharmacodynamics, 35(2), 203-217 (2008-03-20)
The study aim was to assess the inductive properties of artemisinin antimalarials using mephenytoin as a probe for CYP2B6 and CYP2C19 enzymatic activity. The population pharmacokinetics of S-mephenytoin and its metabolites S-nirvanol and S-4'-hydroxymephenytoin, including enzyme turn-over models for induction
Annalise Di Marco et al.
Drug metabolism and disposition: the biological fate of chemicals, 35(10), 1737-1743 (2007-06-30)
A rapid and sensitive radiometric assay for assessing the potential of drugs to inhibit cytochrome P450 (P450) 2C19 in human liver microsomes is described. The new assay, which does not require high-performance liquid chromatography (HPLC) separation or mass spectrometric detection
Robert S Foti et al.
Drug metabolism and disposition: the biological fate of chemicals, 36(3), 523-528 (2007-12-01)
Understanding the potential for cytochrome P450 (P450)-mediated drug-drug interactions is a critical part of the drug discovery process. Factors such as nonspecific binding, atypical kinetics, poor effector solubility, and varying ratios of accessory proteins may alter the kinetic behavior of
Robert S Foti et al.
Journal of medicinal chemistry, 55(3), 1205-1214 (2012-01-14)
A series of omeprazole-based analogues was synthesized and assessed for inhibitory activity against CYP2C19. The data was used to build a CYP2C19 inhibition pharmacophore model for the series. The model was employed to design additional analogues with inhibitory potency against
Michael Zientek et al.
Journal of pharmacological and toxicological methods, 58(3), 206-214 (2008-07-19)
Inhibition of cytochrome P450 (CYP) is a principal mechanism for metabolism-based drug-drug interactions (DDIs). This article describes a robust, high-throughput CYP-mediated DDI assay using a cocktail of 5 clinically relevant probe substrates with quantification by liquid chromatography/tandem mass spectrometry (LC/MS-MS).
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