4-Methylbenzophenone CAS 134-84-9

1. 4-Methylbenzophenone is widely used as a type-II photoinitiator in UV-curable systems, including inks (flexographic, screen, offset, digital), clear coatings for wood, plastic, and metal, and overprint varnishes .
2. 4-Methylbenzophenone CAS 134-84-9 serves as a UV absorber and light stabilizer in polymer materials (plastics, rubber, coatings) to prevent photoaging and degradation, and as a photosensitizer in photochemical reactions .
3. Applications of 4-Methylbenzophenone also include its role as an intermediate in organic synthesis for pharmaceuticals, fragrances, and agrochemicals .

1. Store 4-Methylbenzophenone in a tightly sealed container in a cool, dry, well-ventilated area; recommended temperatures vary from 2-8°C (refrigerated) to room temperature, protected from light .
2. Keep 4-Methylbenzophenone away from strong oxidizing agents, as it is incompatible with these materials .
3. Always 4-Methylbenzophenone CAS 134-84-9 use appropriate personal protective equipment (PPE) including chemical-resistant gloves and safety goggles when handling 4-Methylbenzophenone to avoid skin and eye contact or dust inhalation .

1. Contain the 4-Methylbenzophenone spill using inert, non-combustible absorbent material; avoid dust generation and prevent material from entering drains or waterways .
2. Carefully collect 4-Methylbenzophenone CAS 134-84-9 into a sealed, labeled chemical waste container for proper disposal according to local regulations .
3. Personnel should wear suitable PPE during cleanup; note that 4-Methylbenzophenone is not classified as dangerous goods for transport by some regulations .

1. 4-Methylbenzophenone causes skin irritation (H315) and serious eye irritation (H319), and may cause an allergic skin reaction (H317, Skin sensitization category 1) .
2. 4-Methylbenzophenone has a flash point of 143°C and is combustible; thermal decomposition can produce toxic and irritating fumes, including carbon oxides . Toxicity studies in rats indicate potential hepatotoxic and nephrotoxic effects upon repeated oral exposure .
3. Always 4-Methylbenzophenone CAS 134-84-9 consult the specific Safety Data Sheet (SDS) for 4-Methylbenzophenone for complete hazard, first-aid, and handling information; precautionary statements include P280 (wear protective gloves) and P305+P351+P338 (if in eyes) .