Description

3-Iodophthalic Anhydride is a high-purity halogenated aromatic anhydride, a versatile and critical building block in advanced organic synthesis. Its unique structure, featuring both an anhydride and an iodine substituent, makes it an essential precursor for creating complex molecules with tailored properties. This compound is particularly valuable for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries, where it is used to develop active ingredients, functional polymers, and specialty dyes.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of active pharmaceutical ingredients (APIs), especially in the development of iodinated compounds and heterocyclic systems.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators that require halogenated aromatic cores.
• Functional Polymer & Material Science: Serves as a monomer or cross-linking agent for creating high-performance polymers, liquid crystals, and organic electronic materials.
• Dye & Pigment Manufacturing: Intermediate in the synthesis of specialized iodinated dyes and pigments for high-value applications.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic pathways and creating novel chemical entities.
• Ligand & Catalyst Preparation: Used to synthesize complex ligands for metal-organic frameworks (MOFs) and catalytic systems.

Basic Information

Product Name	3-Iodophthalic Anhydride
CAS No.	28418-88-4
Molecular Formula	C8H3IO3
Molecular Weight	273.97 g/mol
Synonyms	3-Iodophthalic Acid Anhydride; 1,3-Dioxo-1,3-dihydro-2-benzofuran-5-yl iodide; 5-Iodophthalic Anhydride; 5-Iodo-1,3-dihydro-2-benzofuran-1,3-dione; 3-Iodo-1,3-dihydroisobenzofuran-1,3-dione; 5-Iodo-1,3-dihydroisobenzofuran-1,3-dione; 3-Iodoisobenzofuran-1,3-dione
EINECS	Contact for details

Quality Control

Our 3-Iodophthalic Anhydride is manufactured under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment. We are committed to consistent quality and supply chain reliability for our global B2B partners.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials such as strong bases and amines.

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%
Heavy Metals	≤ 20 ppm

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