Description

4-(4-Hydroxyphenoxy)-3,5-Diiodobenzoic Acid is a high-purity iodinated aromatic compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its unique structure, featuring both a phenolic ether and a carboxylic acid group with iodine substituents, makes it a valuable building block for creating complex molecules with specific electronic and steric properties. This compound is primarily utilized by research institutions and pharmaceutical developers engaged in the synthesis of novel active pharmaceutical ingredients (APIs), specialty polymers, and liquid crystal materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of thyroid hormone analogs and other iodine-containing bioactive molecules.
• Liquid Crystal Synthesis: Used as a building block for creating advanced liquid crystal compounds for display technologies.
• Polymer Chemistry: Serves as a monomer or cross-linking agent for producing high-performance, halogenated polymers.
• Organic Electronic Materials: Employed in the development of organic semiconductors and charge transport materials.
• Chemical Research: A versatile reagent for academic and industrial R&D in medicinal chemistry and material science.
• Dye and Pigment Intermediate: Used in the synthesis of specialized iodinated dyes and colorants.

Basic Information

Product Name	4-(4-Hydroxyphenoxy)-3,5-Diiodobenzoic Acid
CAS No.	1838-55-7
Molecular Formula	C13H8I2O4
Molecular Weight	481.01 g/mol
Synonyms	3,5-Diiodo-4-(4-hydroxyphenoxy)benzoic Acid; Benzoic acid, 3,5-diiodo-4-(4-hydroxyphenoxy)-; 4-(4-Hydroxyphenoxy)-3,5-diiodobenzoic acid; 4-(p-Hydroxyphenoxy)-3,5-diiodobenzoic acid; 3,5-Diiodo-4-(p-hydroxyphenoxy)benzoic acid; DIHBA (abbreviation); 1838-55-7 (CAS Registry Number)
EINECS	Contact for details

Quality Control

Our 4-(4-Hydroxyphenoxy)-3,5-Diiodobenzoic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and residual solvent analysis, to ensure it meets the stringent requirements of research and development applications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

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). Keep away from heat, open flames, and incompatible materials. Due to its light-sensitive nature, prolonged exposure to light should be avoided.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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