Description

3-Methoxy-3-Methylisobenzofuran-1(3H)-One is a specialized heterocyclic building block of significant interest in advanced organic synthesis. Its unique fused furanone structure makes it a valuable precursor for constructing complex molecular architectures. This compound is primarily sought by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the development of novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for constructing complex heterocyclic cores.
• Agrochemical Synthesis: Used in the preparation of advanced intermediates for novel herbicides, fungicides, and insecticides.
• Material Science Research: Serves as a monomer or precursor in the development of specialty polymers and functional organic materials.
• Academic & R&D Laboratories: Employed in methodological studies and as a building block for synthesizing libraries of compounds in discovery chemistry.
• Fine Chemical Production: Utilized in the custom synthesis of complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	3-Methoxy-3-Methylisobenzofuran-1(3H)-One
CAS No.	1077-59-4
Molecular Formula	C10H10O3
Molecular Weight	178.18 g/mol
Synonyms	3-Methoxy-3-methylphthalide; 3-Methoxy-3-methyl-1(3H)-isobenzofuranone; 3-Methyl-3-methoxyphthalide; NSC 403697; 1(3H)-Isobenzofuranone, 3-methoxy-3-methyl-; Phthalide, 3-methoxy-3-methyl-
EINECS	214-086-6

Quality Control

We maintain stringent quality control protocols for all our fine chemical intermediates. Each batch of 3-Methoxy-3-Methylisobenzofuran-1(3H)-One is analyzed using advanced techniques including HPLC, GC, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.