Description

3,6-Diacetoxyphthalic Acid Anhydride is a specialized organic intermediate of significant importance in advanced chemical synthesis. This compound matters for its role as a key building block in the production of high-performance polymers, dyes, and pharmaceutical active ingredients. Industries requiring precise molecular architecture, such as specialty polymers, advanced material science, and fine chemical manufacturing, will find this anhydride derivative essential for their R&D and production processes.

Application

• Polymer Chemistry: As a monomer or co-monomer for synthesizing high-temperature resistant polyimides and other specialty polymers.
• Pharmaceutical Intermediates: Key precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs).
• Dye and Pigment Manufacturing: Used in the production of advanced colorants and functional dyes with specific light-fastness properties.
• Liquid Crystal Polymers (LCPs): Building block for monomers used in high-performance LCPs for electronics and optics.
• Epoxy Curing Agents & Hardeners: Functional component in formulations for advanced epoxy resin systems.
• Cross-linking Agent: Imparts thermal and chemical stability to coatings, adhesives, and composite materials.
• Research & Development: Valuable reagent for academic and industrial research in organic and materials chemistry.
• Fine Chemical Synthesis: Intermediate for creating other complex esters, anhydrides, and carboxylic acid derivatives.

Basic Information

Product Name	3,6-Diacetoxyphthalic Acid Anhydride
CAS No.	124511-82-6
Molecular Formula	C12H8O7
Molecular Weight	264.19 g/mol
Synonyms	3,6-Bis(acetyloxy)phthalic anhydride; 3,6-Diacetoxyphthalic anhydride; Phthalic anhydride, 3,6-diacetoxy-; 1,3-Dioxoisobenzofuran-5,6-diyl diacetate; 3,6-Diacetoxy-1,3-dihydroisobenzofuran-1,3-dione; 5,6-Diacetoxyisobenzofuran-1,3-dione; DAOPA
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. Quality is verified through multiple analytical techniques including HPLC, NMR, and IR spectroscopy. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment and is available upon request. We adhere to cGMP principles where applicable to support our customers in regulated industries.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can compromise product integrity. Keep away from incompatible materials such as strong bases, amines, and oxidizing agents.

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	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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