CAS 55512-05-5 appears in our catalog under these names: N-(3-Formylphenyl)methanesulfonamide, 98%, 3–(Methylsulfonamido)benzaldehyde, N-(3-Formylphenyl)methanesulfonamide, 97% , 3-(Methylsulfonamido)benzaldehyde 97%, N-(3-formylphenyl)methanesulfonamide, 97%, 97%. Offered by: Combi-blocks, GLPBio, Thermo Scientific, Ambeed, Chemat. Available pack sizes: 1g, 10g, 25g, 5g, 100g, 250MG, 100mg.