CAS 9004-74-4 appears in our catalog under these names: Polyethylene glycol monomethylether, 350 , Polyethylene glycol monomethylether, 550 , Polyethylene glycol monomethylether, 750 , Polyethylene glycol monomethylether, 1,900 . Offered by: Thermo Scientific (Alfa Aesar). Available pack sizes: 100g, 500g.