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Merck
CN

161543

5-(4-Hydroxyphenyl)-5-phenylhydantoin

98%

Synonym(s):

4-Hydroxydiphenylhydantoin, p-Hydroxyphenytoin, NSC 156081

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About This Item

Empirical Formula (Hill Notation):
C15H12N2O3
CAS Number:
2784-27-2
Molecular Weight:
268.27
NACRES:
NA.22
PubChem Substance ID:
24849940
UNSPSC Code:
12352100
EC Number:
220-492-2
MDL number:
MFCD00005262
Assay:
98%
Form:
solid

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InChI key

XEEDURHPFVXALT-UHFFFAOYSA-N

InChI

1S/C15H12N2O3/c18-12-8-6-11(7-9-12)15(10-4-2-1-3-5-10)13(19)16-14(20)17-15/h1-9,18H,(H2,16,17,19,20)

SMILES string

Oc1ccc(cc1)C2(NC(=O)NC2=O)c3ccccc3

assay

98%

form

solid

mp

>300 °C (lit.)

solubility

soluble 50 mg/mL, clear, colorless to faintly yellow (DMF:MeOH(2:1))

functional group

phenyl

General description

5-(4-Hydroxyphenyl)-5-phenylhydantoin is the major metabolite of phenytoin.

Application

5-(4-Hydroxyphenyl)-5-phenylhydantoin was used in enantiomeric separation of chiral pharmaceuticals using a teicoplanin chiral stationary phase by aqueous and non-aqueous packed capillary electrochromatography. It was used as internal standard in determination of phenylbutazone and its metabolite oxyphenbutazone in human plasma by GLC.
Reactant for activation of hydroxylated metabolites of carbamazepine and phenytoin

Used in studies investigating
Transport across the human placenta barrier
Effects on cellular glucose transport

pictograms

Exclamation mark
GHS07

signalword

Warning

Hazard Classifications

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
8214KL
3702HE
00213DG

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A Takahashi et al.
Japanese journal of pharmacology, 82(1), 82-84 (2000-06-30)
The effects of phenytoin and its major metabolite, 5-(4-hydroxyphenyl)-5-phenylhydantoin (HPPH), on bone resorption of neonatal mouse calvaria were examined in vitro. Both phenytoin and HPPH induced significant bone resorption as compared to the controls after 72 h in culture. This
Vikas Kumar et al.
Drug metabolism and disposition: the biological fate of chemicals, 34(12), 1966-1975 (2006-09-12)
Drug-drug interactions may cause serious adverse events in the clinical setting, and the cytochromes P450 are the enzyme system most often implicated in these interactions. Cytochrome P450 2C is the second most abundant subfamily of cytochrome P450 enzymes and is
Miki Nakajima et al.
Drug metabolism and disposition: the biological fate of chemicals, 30(11), 1250-1256 (2002-10-19)
In humans, orally administered phenytoin, 5,5-diphenylhydantoin, is mainly excreted as 5-(4'-hydroxyphenyl)-5-phenylhydantoin (4'-HPPH) O-glucuronide. Phenytoin is oxidized to 4'-HPPH by CYP2C9 and to a minor extent by CYP2C19, and then 4'-HPPH is metabolized to 4'-HPPH O-glucuronide by UDP-glucuronosyltransferase (UGT). In the
T Yao et al.
Se pu = Chinese journal of chromatography, 15(4), 316-318 (1997-07-01)
A chiral RP-HPLC method was developed to assay the 5-(p-hydroxyphenyl)-5-Phenylhydantoin (p-HPPH) enantiomers, the major metabolite of antiepileptic drug phenytoin, in rat hepatic microsomes. A 50 mm FLC-C8 column was used as the analytical column, beta-cyclodextrin (beta-CD) as chiral mobile phase
Joo-Ho Park et al.
Biotechnology and bioengineering, 78(7), 779-793 (2002-05-10)
We developed a kinetic model that describes a heterogeneous reaction system for the production of D-p-hydroxyphenylglycine from D,L-p-hydroxyphenyl-hydantoin using D-hydantoinase of Bacillus stearothermophilus SD1 and N-carbamoylase of Agrobacterium tumefaciens NRRL B11291. As a biocatalyst, whole cells with separately or co-expressed
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