Description

1,3-Isobenzofurandione,4-Hydroxy-7-Methyl-(9Ci) is a specialized organic compound belonging to the class of substituted phthalides, serving as a key synthetic intermediate and functional building block. Its unique molecular structure, featuring both hydroxyl and methyl substituents on the aromatic ring, makes it valuable for constructing complex molecules with specific electronic and steric properties. This compound is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and advanced materials sectors for developing novel active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-inflammatory agents.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, where its structure contributes to biological activity.
• Functional Polymer Precursor: Serves as a monomer or modifying agent in the production of specialty polymers, such as polyimides or epoxy resins, to impart specific thermal or mechanical properties.
• Dye and Pigment Chemistry: Acts as an intermediate in the synthesis of complex organic dyes and high-performance pigments.
• Organic Synthesis Research: A versatile reagent in academic and industrial laboratories for constructing heterocyclic compounds and exploring new chemical reactions.
• Liquid Crystal Materials: Investigated as a core component in the development of advanced liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs).

Basic Information

Product Name	1,3-Isobenzofurandione,4-Hydroxy-7-Methyl-(9Ci)
CAS No.	62596-57-0
Molecular Formula	C9H6O4
Molecular Weight	178.14 g/mol
Synonyms	4-Hydroxy-7-methyl-1,3-isobenzofurandione; 7-Methyl-4-hydroxyphthalide-1,3-dione; 4-Hydroxy-7-methylphthalic anhydride; 7-Methyl-4-hydroxyisobenzofuran-1,3-dione; 4-Hydroxy-7-methyl-1,3-dihydroisobenzofuran-1,3-dione; 4-Hydroxy-7-methylphthalic acid cyclic anhydride; 7-Methyl-4-hydroxyphthalic acid anhydride
EINECS	Contact for details

Quality Control

Our 1,3-Isobenzofurandione,4-Hydroxy-7-Methyl-(9Ci) is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity determination and spectroscopic methods for structural confirmation, to ensure consistency and meet precise customer specifications. Certificates of Analysis (COA) detailing batch-specific results are provided and available upon request to support your quality assurance and regulatory compliance needs.

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 incompatible materials such as strong bases, strong oxidizing agents, and strong reducing agents. The container should be kept tightly sealed when not in use to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	< 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.0%

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