Description

4,4'-Dihydroxybenzophenone is a high-purity diaryl ketone derivative, serving as a critical building block and intermediate in advanced chemical synthesis. Its bifunctional phenolic structure provides unique reactivity for creating polymers, stabilizers, and specialty additives. This compound is essential for manufacturers in the polymer, pharmaceutical, and UV absorber industries seeking reliable, high-quality intermediates for their production processes.

Application

• Polymer Industry: Key monomer and chain extender in the production of high-performance engineering plastics, polyesters, and polycarbonates.
• UV Stabilizers & Absorbers: Acts as a precursor in the synthesis of benzophenone-type UV absorbers for plastics, coatings, and personal care products to prevent photodegradation.
• Pharmaceutical Intermediates: Used in the synthesis of various active pharmaceutical ingredients (APIs) and drug molecules due to its reactive phenolic groups.
• Antioxidant Synthesis: Serves as a starting material for manufacturing phenolic antioxidants used in rubber, fuels, and lubricants.
• Crosslinking Agent: Utilized in epoxy resin systems and other thermosetting polymers to enhance thermal and mechanical properties.
• Dye & Pigment Intermediate: Employed in the production of certain dyes and organic pigments.
• Laboratory Research: Used as a standard or reagent in chemical research and analytical method development.

Basic Information

Product Name	4,4'-Dihydroxybenzophenone
CAS No.	611-99-4
Molecular Formula	C13H10O3
Molecular Weight	214.22 g/mol
Synonyms	4,4'-Dihydroxybenzophenone; Bis(4-hydroxyphenyl)methanone; 4,4'-Bis(hydroxy)benzophenone; 4-Hydroxybenzophenone-4'-ol; DHBP; Benzophenone-3,3',5,5'-tetrol (incorrect but common misnomer); (4-Hydroxyphenyl)(4-hydroxyphenyl)methanone; p,p'-Dihydroxybenzophenone
EINECS	210-277-6

Quality Control

Our 4,4'-Dihydroxybenzophenone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by FT-IR, to ensure it meets stringent specifications. Certificates of Analysis (COA) documenting all test results are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is easily oxidized and should be stored under an inert atmosphere for long-term storage. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	210°C - 215°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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