Description

4'-Hydroxy-m-Phenoxy Benzoic Acid is a high-purity aromatic carboxylic acid derivative with a distinct phenolic ether structure. This compound serves as a versatile and critical pharmaceutical intermediate and fine chemical building block for advanced synthesis. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking reliable, high-quality raw materials for complex organic reactions.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a phenoxy benzoic acid scaffold.
• Agrochemical Synthesis: Building block for developing advanced herbicides, fungicides, and plant growth regulators.
• Liquid Crystal Materials: Used in the production of monomers and intermediates for high-performance liquid crystal displays (LCDs).
• Polymer Modification: Serves as a functional monomer or additive to impart specific properties like UV stability or adhesion to specialty polymers and resins.
• Dye and Pigment Intermediate: Employed in the synthesis of complex organic dyes and pigments.
• Research & Development: Valuable reagent in organic chemistry research for constructing complex molecular architectures.

Basic Information

Product Name	4'-Hydroxy-m-Phenoxy Benzoic Acid
CAS No.	35065-12-4
Molecular Formula	C13H10O4
Molecular Weight	230.22 g/mol
Synonyms	3-(4-Hydroxyphenoxy)benzoic Acid; Benzoic acid, 3-(4-hydroxyphenoxy)-; 4'-Hydroxy-3-phenoxybenzoic Acid; m-Phenoxy-4'-hydroxybenzoic Acid; 3-(p-Hydroxyphenoxy)benzoic Acid; 4-Hydroxy-3-phenoxybenzoic Acid (alternate numbering); HMPBA (abbreviation)
EINECS	Contact for details

Quality Control

Our 4'-Hydroxy-m-Phenoxy Benzoic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets exacting pharmaceutical and fine chemical grade specifications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.5%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 1.0% Any single impurity ≤ 0.5%

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