N-[(n-butylaMino)carbonyl]-4-[(3-Methylphenyl)aMino]-3-pyridinesulfonaMide;TorseMide Related CoMpound B;Torsemide Related Compound B (75 mg) (N-[(n-butylamino)carbonyl]-4-[(3-methylphenyl)amino]-3-pyridinesulfonamide);TorseMide IMpurity D;N-1-Butyl-1-deMethylethyl TorseMide;Torsemide Related Compound B (50 mg) (N-[(n-butylamino)carbonyl]-4-[(3-methylphenyl)amino]-3-pyridinesulfonamide);Torasemide impurity D (EP);1-butyl-3-[4-(3-methylanilino)pyridin-3-yl]sulfonylurea