1-Butyl-3-(4-hydroxymethylphenyl)sulfonylurea 42794-31-0 5719-85-7 Benzenesulfonamide, N-((butylamino)carbonyl)-4-(hydroxymethyl)- Hydroxytolbutamide Methylhydroxytolbutamide N-((Butylamino)carbonyl)-4-(hydroxymethyl)benzenesulfonamide hydroxymethyltolbutamide