CAS Registry Number

CAS 99-73-0 — 4-Bromophenacyl bromide (2,4'-Dibromoacetophenone)

4-Bromophenacyl bromide (2,4'-Dibromoacetophenone) is a brominated aromatic ketone widely used as a derivatizing agent in analytical chemistry, particularly for converting carboxylic acids into crystalline esters for identification via melting point analysis. It is also employed in synthetic organic chemistry for functional group transformations. CAS 99-73-0, molecular formula C8H6Br2O, molecular weight 277.94 g/mol. Store between 2–8°C. Hazard classification: Danger (signal word), with acute toxicity and skin/eye hazards. Molekula supplies 4-Bromophenacyl bromide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.