CAS Registry Number

CAS 24650-42-8 — 2,2-Dimethoxy-2-phenylacetophenone

2,2-Dimethoxy-2-phenylacetophenone, commonly known as DMPA, is a photoinitiator widely used in UV-curable coatings, inks, and adhesives to enable rapid polymerization under ultraviolet light. This clear, crystalline solid is highly effective in free-radical photopolymerization processes, offering excellent solubility in organic solvents and strong absorption in the UV range. This chemical has a CAS number of 24650-42-8, with a molecular formula of C16H16O3 and a molecular weight of 256.30 g/mol. It is stable at ambient storage conditions and carries a signal word of "Warning" for safety classification. Molekula supplies 2,2-Dimethoxy-2-phenylacetophenone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.