Description

Tetraiodophthalic Anhydride CAS NO 632-80-4 is a highly functionalized, iodine-rich aromatic anhydride. This compound serves as a critical advanced intermediate in the synthesis of specialized dyes, pigments, and high-performance polymers. It is essential for manufacturers and R&D laboratories in the specialty chemicals, advanced materials, and pharmaceutical sectors seeking to incorporate heavy halogen functionalities for specific optical or electronic properties.

Application

• Specialty Dye and Pigment Synthesis: A key precursor for producing iodine-containing xanthene, phthalocyanine, and other complex dyes with unique color properties and stability.
• Functional Polymer Intermediates: Used in the manufacture of polyimides and polyamides with enhanced flame retardancy, thermal stability, and specific dielectric constants.
• Pharmaceutical Research & API Development: Acts as a building block for creating iodinated contrast agents and other active pharmaceutical ingredients (APIs) requiring dense halogenation.
• Organic Electronic Materials: Employed in the development of organic semiconductors, charge-transport materials, and non-linear optical (NLO) materials due to its electron-deficient core.
• Chemical Synthesis Reagent: Serves as a versatile reagent for introducing the phthalic anhydride moiety with multiple iodine substituents in complex organic syntheses.
• Analytical Chemistry Standards: Used as a high-purity reference standard for calibration and method development in chromatographic analysis.

Basic Information

Product Name	Tetraiodophthalic Anhydride
CAS No.	632-80-4
Molecular Formula	C8I4O3
Molecular Weight	651.69 g/mol
Synonyms	1,2,4,5-Tetraiodobenzene-3,6-dicarboxylic anhydride; Phthalic Anhydride, Tetraiodo-; 3,4,5,6-Tetraiodophthalic Anhydride; Tetraiodobenzene-1,2-dicarboxylic Anhydride; TIPA; TIPhA
EINECS	211-186-8

Quality Control

Every batch of Tetraiodophthalic Anhydride is produced and tested under a strict quality management system. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles to ensure the material meets your specific research or production requirements. Our quality commitment supports compliance with relevant standards for fine chemical and advanced intermediate 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). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed and away from direct light to maintain stability and purity.

Specification

Item	Specification
Appearance	Yellow to Beige Crystalline Powder
Identification (IR)	Conforms to Structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm

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