Description

Azophthalic Anhydride is a specialized organic intermediate of significant importance in advanced chemical synthesis. Its unique molecular structure makes it a valuable precursor for creating high-performance polymers, dyes, and functional materials. This compound is essential for manufacturers and R&D laboratories in the chemical, pharmaceutical, and advanced materials sectors seeking to develop products with enhanced properties.

Application

• Polymer Synthesis: A key monomer for producing high-temperature resistant and specialty polyimides and polyamides.
• Dye and Pigment Manufacturing: Serves as a crucial intermediate in the synthesis of complex organic dyes and high-performance pigments.
• Pharmaceutical Intermediates: Used in the research and development of active pharmaceutical ingredients (APIs) and other fine chemicals.
• Advanced Material Production: Integral in creating liquid crystal polymers (LCPs), epoxy resin hardeners, and other engineered materials.
• Cross-linking Agent: Functions as a cross-linker in coatings, adhesives, and composite materials to improve durability and chemical resistance.
• Research & Development: A valuable building block in academic and industrial organic chemistry research for novel compound synthesis.

Basic Information

Product Name	Azophthalic Anhydride
CAS No.	30178-84-8
Molecular Formula	C8H3NO4
Molecular Weight	177.12 g/mol
Synonyms	4-Nitrophthalic Anhydride; 4-Nitro-1,3-isobenzofurandione; Nitrophthalic Anhydride; 1,3-Dioxo-1,3-dihydroisobenzofuran-5-carboxylic acid, 4-nitro-; 5-Nitroisobenzofuran-1,3-dione; 4-Nitro-1,3-dihydroisobenzofuran-1,3-dione; 4-Nitrophthalic acid anhydride
EINECS	Contact for details

Quality Control

Our Azophthalic Anhydride is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive quality assurance, with each lot accompanied by a detailed Certificate of Analysis (COA) that includes results for identity, purity, and impurity profiles. Our quality systems are designed to meet the rigorous demands of industrial and research applications.

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 bases, strong oxidizing agents, and sources of ignition. Due to its reactivity as an anhydride, protect from moisture to prevent hydrolysis.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	162 - 167 °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.