Description

4-Hydroxyphenoxyacetic Acid is a versatile phenolic acid derivative of significant industrial interest. This compound serves as a key synthetic intermediate and building block in the production of more complex molecules. It is primarily utilized by the pharmaceutical, agrochemical, and specialty chemical industries for research and manufacturing purposes.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with specific phenolic or ether functionalities.
• Agrochemical Synthesis: Used in the research and development of herbicides, plant growth regulators, and other crop protection agents.
• Polymer & Material Science: Acts as a monomer or modifier in the production of specialty polymers, resins, and high-performance materials.
• Biochemical Research: Employed as a standard or reagent in enzymatic studies and metabolic pathway research.
• Fine Chemical Synthesis: Serves as a starting material for synthesizing dyes, pigments, and other complex organic compounds.
• Liquid Crystal & Electronic Materials: Investigated for use in the development of advanced electronic materials and display technologies.

Basic Information

Product Name	4-Hydroxyphenoxyacetic Acid
CAS No.	1878-84-8
Molecular Formula	C8H8O4
Molecular Weight	168.15 g/mol
Synonyms	(4-Hydroxyphenoxy)acetic Acid; p-Hydroxyphenoxyacetic Acid; 2-(4-Hydroxyphenoxy)acetic Acid; HO-PhO-CH2-COOH; 4-HPA; Glycolic Acid 4-Hydroxyphenyl Ether; 1-Carboxymethoxy-4-hydroxybenzene
EINECS	217-522-3

Quality Control

Our 4-Hydroxyphenoxyacetic Acid is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for purity, related substances, and other critical parameters are provided with every shipment. We support compliance with cGMP and ISO standards for industrial and research 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). Keep away from strong oxidizing agents, strong bases, and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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