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Merck
CN

1535008

USP

Phenytoin

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

5,5-Diphenylhydantoin, 5,5-Diphenyl-2,4-imidazolidinedione, Phenytoin

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About This Item

Empirical Formula (Hill Notation):
C15H12N2O2
CAS Number:
Molecular Weight:
252.27
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
384532
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grade

pharmaceutical primary standard

API family

phenytoin

manufacturer/tradename

USP

mp

293-295 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

O=C1NC(=O)C(N1)(c2ccccc2)c3ccccc3

InChI

1S/C15H12N2O2/c18-13-15(17-14(19)16-13,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10H,(H2,16,17,18,19)

InChI key

CXOFVDLJLONNDW-UHFFFAOYSA-N

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Phenytoin USP Reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Phenytoin Sodium
  • Phenytoin Chewable Tablets
  • Phenytoin Oral Suspension
  • Phenytoin Sodium Injection
  • Extended Phenytoin Sodium Capsules
  • Phenytoin Compounded Topical Gel
  • Fosphenytoin Sodium Injection

Biochem/physiol Actions

Anticonvulsant.
Reduces incidence of grand mal seizures; appears to stabilize excitable membranes perhaps through effects on Na+, K+, and Ca2+ channels.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Disclaimer

Sales restrictions may apply.


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pictograms

Health hazardExclamation mark

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

flash_point_f

Not applicable

flash_point_c

Not applicable



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P J Smith et al.
Endocrine reviews, 5(4), 514-524 (1984-01-01)
The studies described above indicate the likelihood of a significant effect of DPH on cellular functions that are regulated by T3 at concentrations of DPH that occur during treatment of patients with Dilantin. Thus, it is possible that sensitive measures
Syed Nabeel Zafar et al.
BMC neurology, 12, 30-30 (2012-05-31)
Current standard therapy for seizure prophylaxis in Neuro-surgical patients involves the use of Phenytoin (PHY). However, a new drug Levetiracetam (LEV) is emerging as an alternate treatment choice. We aimed to conduct a meta-analysis to compare these two drugs in
Lelia Duley et al.
The Cochrane database of systematic reviews, (10)(10), CD000128-CD000128 (2010-10-12)
Eclampsia, the occurrence of a seizure in association with pre-eclampsia, remains a rare but serious complication of pregnancy. A number of different anticonvulsants have been used to control eclamptic fits and to prevent further seizures. The objective of this review



Global Trade Item Number

SKUGTIN
1535008-200MG04061838740878