Description

Phthalide-3-Acetic Acid is a versatile organic compound that serves as a key synthetic intermediate in advanced chemical manufacturing. Its unique structure, featuring both a phthalide and an acetic acid moiety, makes it a valuable building block for constructing complex molecules. This product is essential for research and production in the pharmaceutical and fine chemical sectors, where it is used to develop active ingredients and specialty materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of various active pharmaceutical ingredients (APIs), particularly those with complex heterocyclic structures.
• Organic Synthesis Building Block: Used in the preparation of dyes, pigments, and other fine chemicals requiring the phthalide scaffold.
• Agrochemical Research: Employed in the development of novel herbicides, fungicides, and plant growth regulators.
• Material Science: Acts as a monomer or modifier in the synthesis of specialized polymers and advanced organic materials.
• Academic & Industrial R&D: Serves as a standard reagent in chemical research for method development and exploratory synthesis.

Basic Information

Product Name	Phthalide-3-Acetic Acid
CAS No.	4743-58-2
Molecular Formula	C10H8O4
Molecular Weight	192.17 g/mol
Synonyms	3-Carboxymethylphthalide; 1,3-Dihydro-3-(hydroxymethylene)-1-oxoisobenzofuran; 3-(Carboxymethyl)phthalide; 3-Acetic Acid Phthalide; Phthalidyl-3-acetic Acid; 1-Oxo-1,3-dihydroisobenzofuran-3-acetic acid; 3-Phthalidylacetic Acid
EINECS	225-254-8

Quality Control

Our Phthalide-3-Acetic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request to support your quality assurance protocols.

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 incompatible materials such as strong bases and oxidizing agents. Due to its acidic nature, ensure containers are properly sealed and handled with appropriate precautions to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
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.