CAS Registry Number

CAS 131-55-4 — 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone

2,2'-Dihydroxy-4,4'-dimethoxybenzophenone, also called **DODMB**, is a UV-absorbing chemical widely used as a photostabilizer in plastics, coatings, and adhesives to prevent degradation from sunlight exposure. It functions as a hindered amine light stabilizer (HALS) synergist and is particularly effective in polyolefins and PVC formulations. This chemical has a CAS number of 131-55-4, with the molecular formula C13H10O5 and a molecular weight of 246.2155 g/mol. It is stable at ambient storage conditions and carries no classification for hazardous signal words. Molekula supplies 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone from research to bulk quantities with full documentation and ISO 9001:2015 traceability.