Description

Benzophenone Dimethylketal is a high-purity photoinitiator widely used in UV-curable systems. Its primary value lies in its ability to generate free radicals upon exposure to UV light, initiating rapid polymerization for efficient curing. This compound is essential for manufacturers in the coatings, inks, and adhesives industries seeking to enhance production speed and product performance. Its specific properties make it a critical component in formulations requiring a reliable and efficient cure under UV light sources.

Application

• UV-Curable Coatings: A key photoinitiator for clear and pigmented coatings on wood, plastic, and metal substrates, providing excellent surface hardness and gloss.
• Printing Inks: Enables fast curing in flexographic, screen, and offset inks, resulting in high print quality and resistance to abrasion and chemicals.
• Industrial Adhesives: Facilitates instant bonding in UV-curable adhesives and sealants used in electronics, medical devices, and optical assemblies.
• Dental Composites: Used in light-cured dental restorative materials for rapid hardening and durable fillings.
• Electronic Encapsulants: Employed in potting compounds and conformal coatings to protect sensitive electronic components.
• 3D Printing Resins: Acts as a photoinitiator in stereolithography (SLA) and other photopolymerization-based additive manufacturing processes.

Basic Information

Product Name	Benzophenone Dimethylketal
CAS No.	2235-01-0
Molecular Formula	C16H16O2
Molecular Weight	240.30 g/mol
Synonyms	2,2-Dimethoxy-2-phenylacetophenone; Benzil Dimethyl Ketal; BDK; Irgacure 651; Esacure KB1; Photoinitiator BDK; α,α-Dimethoxy-α-phenylacetophenone; (2,2-Dimethoxy-1,2-diphenyl)ethanone
EINECS	218-767-5

Quality Control

Our Benzophenone Dimethylketal is manufactured under a strict quality management system. Every batch is analyzed to ensure it meets high-purity standards suitable for industrial and specialty chemical applications. Certificates of Analysis (COA) documenting key parameters such as assay, melting point, and UV absorbance are provided and 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 room temperature (15-25°C). Keep away from heat sources and incompatible materials. Due to its light-sensitive nature, containers should be kept sealed when not in use to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0 %
Melting Point	64 - 68 °C
Loss on Drying	≤ 0.5 %
UV Absorption	Conforms

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