Description

Methyl 1,3-Dihydro-1,3-Dioxoisobenzofuran-5-Carboxylate is a specialized organic compound belonging to the class of phthalide derivatives, serving as a versatile and high-purity synthetic intermediate. Its value lies in its functionalized aromatic structure, which makes it a critical building block for constructing more complex molecules in advanced chemical synthesis. This product is essential for research and development chemists and process engineers in the pharmaceutical, agrochemical, and advanced material science industries, where precise molecular architecture is required.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with fused heterocyclic or phthalide-based structures.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and plant growth regulators, leveraging its reactive ester and carbonyl groups.
• Organic Light-Emitting Diodes (OLEDs): Serves as a starting material for the preparation of electron-transport or host materials in organic electronic applications.
• Dye and Pigment Manufacturing: Acts as a building block for creating complex colorants and functional dyes with specific light-absorption properties.
• Polymer Chemistry: Can be incorporated as a monomer or cross-linking agent to introduce specific functional groups into polymer backbones.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new chemical reactions in laboratory-scale research.

Basic Information

Product Name	Methyl 1,3-Dihydro-1,3-Dioxoisobenzofuran-5-Carboxylate
CAS No.	2902-64-9
Molecular Formula	C10H6O5
Molecular Weight	206.15 g/mol
Synonyms	5-Carbomethoxyphthalide; Methyl 5-phthalancarboxylate; 5-(Methoxycarbonyl)phthalide; 1,3-Dihydro-5-(methoxycarbonyl)-1,3-dioxoisobenzofuran; Methyl 1,3-dioxo-1,3-dihydroisobenzofuran-5-carboxylate; 5-Methoxycarbonylphthalide; 5-Carbomethoxy-1,3-isobenzofurandione (incorrect but common); 2902-64-9
EINECS	220-817-5

Quality Control

Our production of Methyl 1,3-Dihydro-1,3-Dioxoisobenzofuran-5-Carboxylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. A Certificate of Analysis (COA) detailing identity, purity, and related substances is provided with every shipment, supporting compliance in cGMP and ISO 9001 environments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and reducing agents. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details
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.