Description

2,2'-Dihydroxy-4,4'-Dimethoxybenzophenone is a specialized benzophenone derivative widely recognized for its efficacy as a UV absorber. This compound matters for its ability to protect materials from photodegradation by absorbing harmful ultraviolet radiation. It is primarily needed by manufacturers in the polymer, coating, and personal care industries seeking to enhance the light stability and longevity of their products.

Application

• As a light stabilizer and UV absorber in plastics and polymers, including PVC, polyolefins, and polyurethanes.
• In the formulation of protective coatings, paints, and varnishes to prevent yellowing and degradation from sunlight exposure.
• As a key ingredient in sunscreen and personal care products for its ability to absorb UVA/UVB rays.
• For the stabilization of adhesives, sealants, and synthetic fibers against photochemical breakdown.
• In agricultural films to extend service life by protecting against solar radiation.
• As an additive in packaging materials to prevent UV-induced damage to sensitive contents.

Basic Information

Product Name	2,2'-Dihydroxy-4,4'-Dimethoxybenzophenone
CAS No.	131-54-4
Molecular Formula	C15H14O5
Molecular Weight	274.27 g/mol
Synonyms	Benzophenone-8; Uvinul D-49; DHMB; 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone; 4,4'-Dimethoxy-2,2'-dihydroxybenzophenone; 2-Hydroxy-4-methoxy-2',4'-dimethoxybenzophenone; UV Absorber 49; Light Stabilizer 49
EINECS	205-027-6

Quality Control

Our 2,2'-Dihydroxy-4,4'-Dimethoxybenzophenone is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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. Due to its light-sensitive nature, minimize exposure to direct light during handling and storage.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	68°C - 72°C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
UV Absorption	Conforms to typical profile

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