Description

2-Hydroxy-4-(Isooctoxy)Benzophenone is a high-performance liquid benzophenone derivative widely recognized for its exceptional light-stabilizing properties. This compound is critical for protecting polymers and coatings from the degrading effects of ultraviolet (UV) radiation, thereby extending product lifespan and maintaining aesthetic quality. It is an essential additive for manufacturers in the plastics, coatings, and adhesives industries seeking to enhance the durability of their formulations for outdoor and high-exposure applications.

Application

• Primary use as a highly effective UV absorber (UVA) and light stabilizer in polymer systems.
• Protection of polyolefins (e.g., PP, PE) and PVC from photo-oxidative degradation.
• Enhancing the weatherability and color stability of industrial and automotive coatings, paints, and varnishes.
• Stabilization of adhesives, sealants, and caulks against sunlight-induced embrittlement.
• Used in the formulation of agricultural films to extend service life under solar exposure.
• Potential additive in personal care products (e.g., sunscreens) requiring broad-spectrum UV protection, subject to regulatory approval.
• Protective component in specialty inks and dyes to prevent fading.

Basic Information

Product Name	2-Hydroxy-4-(Isooctoxy)Benzophenone
CAS No.	33059-05-1
Molecular Formula	C21H26O3
Molecular Weight	326.43 g/mol
Synonyms	2-Hydroxy-4-(isooctyloxy)benzophenone; UV-531; Octabenzone; 2-Hydroxy-4-n-octoxybenzophenone (technical grade); Benzophenone-12; BP-12; Chimassorb 81; Lowilite 22; Uvinul 3008; 2-Hydroxy-4-(2-ethylhexyloxy)benzophenone (common misnomer for related structure)
EINECS	251-358-2

Quality Control

Our 2-Hydroxy-4-(Isooctoxy)Benzophenone is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for identity, purity, and performance. A Certificate of Analysis (COA) detailing key parameters such as assay, melting point, and UV absorbance is provided with each shipment to guarantee consistency and 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 room temperature (15-25°C). Keep away from heat sources and incompatible materials. The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0 %
Melting Point	47 - 49 °C
UV Absorbance (λ max)	Conforms (approx. 290 nm & 325 nm)
Loss on Drying	≤ 0.5 %
Residue on Ignition	≤ 0.1 %

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