Description

4-Hydroxy-3,5-Diiodobenzoyl Chloride is a versatile and highly reactive aromatic acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its core value lies in its dual functionality, combining a reactive acyl chloride group with a phenolic hydroxyl group, enabling the creation of complex esters and amides for high-value applications. This compound is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop novel active compounds or advanced materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of thyroid hormone analogs, X-ray contrast media agents, and other iodinated bioactive molecules.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators that require specific halogenated aromatic structures.
• Polymer Chemistry: Monomer for producing specialty polyesters and polyamides with unique properties like enhanced thermal stability or specific reactivity.
• Liquid Crystal & OLED Materials: Intermediate in the manufacture of iodinated aromatic cores for advanced electronic display and lighting materials.
• Chemical Research & Development: Versatile reagent for constructing complex molecular architectures in academic and industrial R&D settings.
• Dye & Pigment Industry: Starting material for synthesizing specialized iodinated dyes and colorants.

Basic Information

Product Name	4-Hydroxy-3,5-Diiodobenzoyl Chloride
CAS No.	5536-78-7
Molecular Formula	C7H3ClI2O2
Molecular Weight	388.36 g/mol
Synonyms	3,5-Diiodo-4-hydroxybenzoyl chloride; 4-Hydroxy-3,5-diiodobenzoic acid chloride; 3,5-Diiodo-4-hydroxybenzoic acid chloride; 3,5-Diiodo-4-hydroxybenzoyl chloride; Benzoyl chloride, 4-hydroxy-3,5-diiodo-; 4-Hydroxy-3,5-diiodo-benzoylchloride; 3,5-Diiodo-4-hydroxy-benzoicacidchloride
EINECS	226-886-7

Quality Control

Our 4-Hydroxy-3,5-Diiodobenzoyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by FT-IR and NMR spectroscopy, to ensure it meets exacting standards for research and production. Certificates of Analysis (COA) with full batch traceability are provided to guarantee consistency, purity, and reliability for your critical synthetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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