6273-17-2 Carbamimidothioic acid, methylene ester, dihydrobromide (9CI) Methylene isothiourea dihydrobromide NSC 32948 Pseudourea, 2,2'-methylenebis(thio-, dihydrobromide Pseudourea, 2,2'-methylenedithiodi-, dihydrobromide USAF EL-95 Uretine, 2-mercapto-, dihydrobromide