29197-94-2 7-((Sulfomethyl)amino)-4-methyl coumarin sodium salt Coumarin 175 Coumarin, 4-methyl-7-((sulfomethyl)amino)-, monosodium salt Methanesulfonic acid, ((4-methyl-2-oxo-2H-1-benzopyran-7-yl)amino)-, monosodium salt NSC 338965