1,1'-Methylendithiosemikarbazid [Czech] 1,1'-Methylenedi(thiosemicarbazide) 2,2'-Methylenebis(hydrazinecarbothiamide) 2,2'-Methylenebis(hydrazinecarbothioamide) (9CI) 39603-48-0 Bisthiosemi Hydrazinecarbothioamide, 2,2'-methylenebis- Kayanex Methylenebis(1-thiosemicarbazide) NK-15561 Semicarbazide, methylenebis(thio-