Butynediol ethoxylate(beo) Cas:1606-85-5 Trade name beo Chemical name butynediol ethoxylate Other name: 5-oxa-2-octyne-1, 7-diol Dipropyloxy butynediol 1, 4-butynediolpropoxylate Propoxylated 1, 4-butynediol 4-(2-hydroxypropoxy)but-2-yn-1-ol Cb number: cb1854815 Mf: c10h18o4 Mw: 144.17 Assay 98% Appearance yellowish to brown red transparent liquid Application butynediol propoxylate(1606-79-7) can be used as nickel plating brightener, inhibitor of black metal corrosion. It is used as lasting brightener, weak leveling agent in plating. Package: 25kgs/plastic drum