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Fosphenytoin Sodium or Fosphenytoin Disodium
CAS Number: 92134-98-0

Molecular Formula: C16H13N2Na2O6P
Molecular Weight: 406.24

Fosphenytoin Sodium or Fosphenytoin Disodium Suppliers
Fosphenytoin Sodium or Fosphenytoin Disodium

Fosphenytoin sodium is an injectable prescription anti-seizure medication (hydantoin prodrug) that converts into phenytoin inside the body. It is used in hospital settings to treat generalized tonic-clonic status epilepticus, control seizures during neurosurgery, or provide a short-term substitute when oral phenytoin is not possible.

Fosphenytoin Sodium USP Grade Specifications:
C16H13N2Na2O6P --- 406.24
2,4-Imidazolidinedione, 5,5-diphenyl-3-[(phosphonooxy)methyl]-, disodium salt;
3-(Hydroxymethyl)-5,5-diphenylhydantoin, disodium phosphate (ester)
CAS 92134-98-0
UNII: 7VLR55452Z
UNII: B4SF212641

DEFINITION
Fosphenytoin Sodium contains NLT 98.0% and NMT 102.0% of fosphenytoin sodium (C16H13N2Na2O6P), calculated on anhydrous basis.

IDENTIFICATION
A. Infrared Absorption.
B. The retention time of the major peak of the Sample solution corresponds to that of the Standard solution.
C. Identification Tests—General, Sodium.

Organic Impurities: To pass the test by chromatography.
pH: Sample solution: 75 mg/mL of Fosphenytoin Sodium in water. Acceptance criteria: 8.5–9.5
Water Determination: 21.7%–25.7%
Packaging and Storage: Preserve in tight containers.

Please visit SDS Safety Data Sheet of Fosphenytoin Sodium or Fosphenytoin Disodium Suppliers.

American Molecules, also known as ammol.org is a distributor, supplier and manufacturers' representative of all types of Pharmaceuticals, Functional Ingredients, Excipients and Specialty Chemicals in Texas USA. Our principals manufacture supply and export USP NF BP, Ph Eur, etc grades of chemicals pure and reagent grade, mineral fortifiers, FCC food grade. Tailor made particle size and customized specifications are offered. The principal's facility is having one or more of the certifications like FDA approval and GLP, cGMP, ISO9001, ISO14001, ISO/IEC 17025, ISO22000, FSSC 22000, ISO45001, FSSAI, Kosher, HALAL, COPP, WHO-GMP certified and Written Confirmation (WC) for export to Europe is available. The manufacturers suppliers and exporters observe WHO Good Manufacturing Practices and Good Laboratory Practices.

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American Molecules - Ammol.org USA
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Houston, TX 77040, USA
Call Toll Free: 1-855-55-AMMOL 1-855-552-6665
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23 August, 2026