CAS 90-98-2 appears in our catalog under these names: 4,4'-Dichlorobenzophenone 98%, 4,4'-Dichlorobenzophenone, 98%, 4,4'-Dichlorobenzophenone, 4,4'-Dichlorobenzophenone 10 µg/mL in Cyclohexane, 4,4'–Dichlorobenzophenone. Offered by: Ambeed, Fluorochem, Dr. Ehrenstorfer, GLPBio, Thermo Scientific (Alfa Aesar). Available pack sizes: 25g, 100g, 500g, 1000g, 5g, 1kg, 250mg, 10ml.