Description

2,2"-Dihydroxy-4,4"-2(Hydroxypropane-1,3-Diyldioxy)Dibenzophenone is a specialized organic compound belonging to the benzophenone class, functioning as a highly effective ultraviolet (UV) light absorber. This compound matters for its ability to provide superior photostabilization, protecting sensitive materials from degradation caused by UV radiation. It is primarily needed by manufacturers in the polymer, coating, and specialty chemical industries seeking to enhance the durability and longevity of their products.

Application

• Polymer Stabilizer: A key additive in plastics (e.g., polyolefins, PVC) and synthetic fibers to prevent UV-induced yellowing, embrittlement, and loss of mechanical properties.
• Coating & Paint Formulations: Used in automotive, industrial, and architectural coatings to protect the binder and pigments from photodegradation, maintaining gloss and color integrity.
• Adhesive & Sealant Protection: Incorporated to prevent the breakdown of adhesive polymers exposed to sunlight, ensuring long-term bond strength.
• Personal Care & Cosmetic Ingredients: Acts as a UV filter in sunscreen formulations and cosmetic products to protect the skin and the product itself from sunlight.
• Advanced Material Manufacturing: Employed in the production of high-performance films, optical lenses, and electronic encapsulants requiring enhanced weatherability.

Basic Information

Product Name	2,2"-Dihydroxy-4,4"-2(Hydroxypropane-1,3-Diyldioxy)Dibenzophenone
CAS No.	23911-85-5
Molecular Formula	C31H28O8
Molecular Weight	528.55 g/mol
Synonyms	UV-360; Bis(2,4-dihydroxyphenyl)methane propane-1,3-diyl bis(oxy) derivative; 2,2',4,4'-Tetrahydroxybenzophenone 1,3-propanediol ketal; 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone cyclic 1,3-propanediol ketal; Light Stabilizer 360; Benzophenone, 2,2'-dihydroxy-4,4'-dimethoxy-, cyclic 1,3-propanediol ketal; Propanedioxybis(2,4-dihydroxyphenyl)methanone
EINECS	Contact for details

Quality Control

Our 2,2"-Dihydroxy-4,4"-2(Hydroxypropane-1,3-Diyldioxy)Dibenzophenone is produced under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for industrial and specialty applications. Certificates of Analysis (COA) documenting all critical quality parameters are available upon request to support your quality assurance protocols.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture. For long-term storage, consider using an inert atmosphere to mitigate potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	140 - 145 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
UV Absorption (λ max)	Conforms

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