Description

1(3H)-Isobenzofuranone,3-Hydroxy-3-Methyl-(9Ci) is a specialized organic compound belonging to the class of isobenzofuranones, serving as a valuable chemical intermediate and building block in advanced synthesis. Its significance lies in its unique lactone structure, which provides a versatile reactive site for constructing more complex molecules in fine chemical and pharmaceutical manufacturing. This product is essential for research chemists and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors who require high-purity intermediates for developing active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with lactone or fused-ring structures.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and plant growth regulators.
• Fine Chemical Production: Serves as a precursor for dyes, pigments, and other performance chemicals requiring specific heterocyclic frameworks.
• Polymer Chemistry: Acts as a monomer or modifying agent for specialty polymers, such as polyesters or resins with enhanced properties.
• Organic Synthesis Research: A versatile reagent in academic and industrial R&D for constructing complex molecular architectures.
• Flavor and Fragrance Industry: Potential intermediate for synthesizing certain aroma chemicals and musk analogs.

Basic Information

Product Name	1(3H)-Isobenzofuranone,3-Hydroxy-3-Methyl-(9Ci)
CAS No.	1828-76-8
Molecular Formula	C9H8O3
Molecular Weight	164.16 g/mol
Synonyms	3-Hydroxy-3-methylphthalide; 3-Methyl-3-hydroxyphthalide; 3-Hydroxy-3-methyl-1(3H)-isobenzofuranone; 3-Methyl-3-hydroxy-1(3H)-isobenzofuranone; 3-Hydroxy-3-methyl-2-benzofuran-1(3H)-one; NSC 163990; 3-Hydroxy-3-methylphthalide (9CI)
EINECS	217-377-5

Quality Control

Our 1(3H)-Isobenzofuranone,3-Hydroxy-3-Methyl-(9Ci) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatography and spectroscopy, to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for your critical synthesis processes.

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 strong oxidizing agents, strong acids, and strong bases. For long-term storage, consider under an inert atmosphere to maintain stability.

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

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