Bromosporine 1MG. Bromosporine, Molecular Formula: C17H20N6O4S, Molecular Weight: 404. 44, Purity: greater than or equal to 98% by HPLC, Appearance: White solid, Synonym: Ethyl (3-methyl-6-(4-methyl-3-(methylsulfonamido)phenyl)-[1, 2, 4]triazolo[4, 3-b]pyridazin-8-yl)carbamate, Size: 1MG