This compound, known as Photoinitiator OMBB, is a high-efficiency UV photoinitiator widely used in low-odor UV-curing systems. It is primarily employed in food packaging UV inks, offset inks, flexographic inks, screen inks, varnishes, wood coatings, plastic coatings, and adhesives. With strong UV absorption at 254 nm, it efficiently initiates polymerization of acrylate monomers under UV light, offering fast curing speed, low odor, and good compatibility with various resins. Its low-migration property makes it suitable for food-contact materials, complying with FDA and EU food safety standards. It also serves as a UV absorber in plastics and cosmetics to enhance light stability.

GHS Classification: GHS07 (Warning); GHS09 (Environmental Hazard) Hazard Statements: H315 (Causes skin irritation); H319 (Causes serious eye irritation); H410 (Very toxic to aquatic life with long lasting effects) Precautionary Statements: P273 (Avoid release to the environment); P280 (Wear protective gloves/eye protection); P305+P351+P338 (If in eyes, rinse with water for 15 minutes) This compound has low acute toxicity (oral LD50 >5000 mg/kg in rats). Skin contact may cause mild redness or itching; eye contact can lead to irritation. No carcinogenicity or mutagenicity has been reported. Environmental hazard: Highly toxic to aquatic organisms; avoid discharge into waterways. Handle in a fume hood with nitrile gloves and safety goggles. Store in a cool, dry place, sealed, away from oxidizing agents.