Description

4-Hydroxy[1,1'-Biphenyl]-3-Carboxylic Acid is a versatile biphenyl derivative that serves as a key synthetic intermediate in advanced organic chemistry. Its molecular structure, featuring both phenolic and carboxylic acid functional groups, makes it a valuable building block for the synthesis of complex molecules. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs), active pharmaceutical ingredients (APIs), and other therapeutic agents.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and plant growth regulators, leveraging its biphenyl core.
• Liquid Crystal & OLED Materials: Serves as a foundational unit for creating biphenyl-based mesogens and organic light-emitting diode (OLED) materials due to its rigid, planar structure.
• Dye & Pigment Manufacturing: Acts as an intermediate in the production of high-performance dyes, pigments, and optical brighteners.
• Polymer Chemistry: Employed as a monomer or chain modifier in the synthesis of specialty polymers, including polyesters and polyarylates, to impart specific thermal or mechanical properties.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new chemical reactions, catalysis, and material science applications.

Basic Information

Product Name	4-Hydroxy[1,1'-Biphenyl]-3-Carboxylic Acid
CAS No.	323-87-5
Molecular Formula	C₁₃H₁₀O₃
Molecular Weight	214.22 g/mol
Synonyms	3-Biphenylol-4-carboxylic Acid; 4'-Hydroxybiphenyl-3-carboxylic Acid; 3-Carboxy-4-hydroxybiphenyl; 4-Hydroxy-3-phenylbenzoic Acid; 3-Phenyl-4-hydroxybenzoic Acid; 4-Hydroxy-3-biphenylcarboxylic Acid; 4-Hydroxydiphenyl-3-carboxylic Acid
EINECS	206-300-1

Quality Control

Every batch of 4-Hydroxy[1,1'-Biphenyl]-3-Carboxylic Acid is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards, and our quality control protocols include identity confirmation, purity assay, and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and product integrity for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). This product is light-sensitive and easily oxidized; prolonged exposure to light, air, or elevated temperatures should be avoided to maintain stability and purity.

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%
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.