Metolazone EP Impurity B

Chemical Name: Metolazone USP RC D ; 7-Chloro-1,2,3,4-tetrahydro-2-methyl-3-(4-methylphenyl)-4-oxo-6-quinazolinesulfonamide; 7-Chloro-1,2,3,4-tetrahydro-2-methyl-4-oxo-3-p-tolyl-6-quinazolinesulfonamide