Description

4,4'-Diacetoxybiphenyl is a high-purity organic intermediate of significant industrial importance. This compound serves as a versatile building block in advanced synthesis, valued for its bifunctional aromatic structure. It is primarily utilized in the production of liquid crystal polymers (LCPs), high-performance engineering plastics, and specialty fine chemicals. Global manufacturers in the polymer and pharmaceutical sectors rely on this key material for its consistent quality and reliable performance.

Application

• Liquid Crystal Polymer (LCP) Monomer: A critical precursor in the synthesis of thermotropic LCPs used in electronics, automotive, and aerospace components.
• Polymer Modifier: Used to introduce aromatic ester linkages, enhancing the thermal stability and mechanical properties of engineering plastics.
• Pharmaceutical Intermediate: Serves as a key synthon in the multi-step synthesis of complex active pharmaceutical ingredients (APIs).
• Cross-linking Agent: Employed in the formulation of specialty resins and coatings to improve network density and performance.
• Organic Synthesis Building Block: Utilized in research and development for constructing complex biphenyl-based molecular architectures.
• Dye and Pigment Intermediate: Acts as a precursor in the manufacturing of certain high-performance dyes and organic pigments.

Basic Information

Product Name	4,4'-Diacetoxybiphenyl
CAS No.	32604-29-8
Molecular Formula	C16H14O4
Molecular Weight	270.28 g/mol
Synonyms	4,4'-Biphenyldiol Diacetate; 4,4'-Dihydroxybiphenyl Diacetate; Biphenyl-4,4'-diyl Diacetate; 4-Acetoxy-4'-acetoxybiphenyl; [1,1'-Biphenyl]-4,4'-diyl Diacetate; p,p'-Diacetoxybiphenyl; 4,4'-Diacetyloxybiphenyl
EINECS	251-112-7

Quality Control

Our 4,4'-Diacetoxybiphenyl is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our production facilities adhere to cGMP guidelines, and our quality commitment meets the stringent requirements of the polymer and fine chemical industries.

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. The container must be kept tightly sealed to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Melting Point	164 - 168 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 1.0%

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