CAS 252561-34-5 appears in our catalog under these names: 1-Amino-3-fluoro-4-(methylsulphonyl)benzene, 98%, 3-Fluoro-4-(methylsulfonyl)aniline, 98%, 3–Fluoro–4–(methylsulfonyl)aniline, 3-Fluoro-4-(methylsulfonyl)aniline, 3-Fluoro-4-(methylsulfonyl)aniline, 95%, 95%. Offered by: Combi-blocks, AmBeed, GLPBio, Biosynth, Chemat. Available pack sizes: 1g, 10g, 25g, 5g, 100mg, 250mg.