CAS 99186-50-2 appears in our catalog under these names: 4′–(Ethylsulphonyl)acetophenone, 4-Ethylsulfonylacetophenone, 1-(4-(Ethylsulfonyl)phenyl)ethanone, 98%, 98%, 4-Ethylsulfonylacetophenone, 98%. Offered by: GLPBio, Biosynth, Chemat, Fluorochem. Available pack sizes: 1g, 250mg, 100mg, 5g, 50mg, 500mg.