6273-17-2 Carbamimidothioic acid, methylene ester, dihydrobromide Methylene isothiourea dihydrobromide NSC32948 Pseudourea, 2,2'-methylenebis(thio-, dihydrobromide Pseudourea, 2,2'-methylenedithiodi-, dihydrobromide Uretine, 2-mercapto-, dihydrobromide Usaf el-95 WLN: MUYZS1 &EH 2