Description

Methsuximide is a high-purity chemical compound used as a key intermediate in advanced pharmaceutical synthesis. Its precise molecular structure makes it a critical building block for the development of specialized active pharmaceutical ingredients (APIs). This product is essential for research and manufacturing facilities in the global pharmaceutical and fine chemical industries seeking reliable, high-quality raw materials.

Application

• Pharmaceutical Intermediate: Primary use as a crucial synthetic precursor in the manufacture of anticonvulsant and other central nervous system (CNS) active pharmaceutical ingredients.
• Research & Development: Serves as a reference standard and starting material in medicinal chemistry for the discovery of new therapeutic agents.
• Fine Chemical Synthesis: Employed in multi-step organic synthesis to construct complex molecular architectures for specialized applications.
• Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for cGMP production of drug substances.

Basic Information

Product Name	Methsuximide
CAS No.	1189980-63-9
Molecular Formula	C12H13NO2
Molecular Weight	203.24 g/mol
Synonyms	N-Methyl-2-methyl-2-phenylsuccinimide; 2-Methyl-2-phenyl-N-methylsuccinimide; 3-Methyl-3-phenylpyrrolidine-2,5-dione; Methsuximid; Mesuximide; PM 396; Celontin (brand name)
EINECS	Contact for details

Quality Control

Our Methsuximide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for pharmaceutical applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.5%
Related Substances (HPLC)	Total impurities ≤ 1.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.