Description

4-Hydroxybenzophenone is a versatile organic compound belonging to the benzophenone class, characterized by a hydroxyl group at the para position. This functional group makes it a valuable intermediate and a key building block in the synthesis of more complex molecules, particularly those requiring UV-absorbing properties. It is essential for manufacturers in the polymer, pharmaceutical, and specialty chemical industries seeking to enhance product stability and performance.

Application

• UV Stabilizer and Light Absorber: A crucial intermediate in the production of benzotriazole and other high-performance UV absorbers used in plastics, coatings, and adhesives to prevent photodegradation.
• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of various active pharmaceutical ingredients (APIs) and drug candidates.
• Organic Synthesis Building Block: Used in the preparation of liquid crystals, agrochemicals, and fine chemicals due to its reactive hydroxyl and ketone functional groups.
• Polymer Additive Precursor: Employed in the manufacture of additives that improve the thermal and light stability of engineering polymers like polycarbonates and polyesters.
• Cosmetic Ingredient Synthesis: Acts as a precursor for compounds used in sunscreens and personal care products designed to filter ultraviolet light.
• Research & Development: Utilized in academic and industrial R&D labs for studying photochemical reactions and developing new materials.

Basic Information

Product Name	4-Hydroxybenzophenone
CAS No.	1137-42-4
Molecular Formula	C13H10O2
Molecular Weight	198.22 g/mol
Synonyms	(4-Hydroxyphenyl)phenylmethanone; p-Hydroxybenzophenone; Benzophenone-4 (BP-4); 4-Benzoylphenol; Oxyphenone; NSC 403914; UV Absorber HBP; PHBP
EINECS	214-506-6

Quality Control

Our 4-Hydroxybenzophenone is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and impurity profiles. Certificates of Analysis (COA) documenting results for assay, related substances, and physical properties are provided to guarantee consistent quality and traceability for your production processes.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.5%
Melting Point	132°C - 136°C
Loss on Drying	≤ 0.5%
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.