CAS 307989-41-9 appears in our catalog under these names: 3-Methanesulfonyl-4-methylaniline, 4-Methyl-3-(methylsulfonyl)aniline 98%, 4-methyl-3-(methylsulfonyl)aniline, 98%, 98%, 4-Methyl-3-(methylsulfonyl)aniline, 98%. Offered by: Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 100mg, 250mg, 5g.