1,4-Diisothiuronium-n-butane dibromide 2,2'-Tetramethylene-bis(2-thiopseudourea), dihydrobromide 6345-25-1 Butylene-1,4-bisisothiourea dihydrobromide Carbamimidothioic acid, 1,4-butanediyl ester, dihydrobromide Carbamimidothioic acid, 1,4-butanediyl ester, dihydrobromide (9CI) NSC 18324 Pseudourea, 2,2'-tetramethylene(dithio-, dihydrobromide Pseudourea, 2,2'-tetramethylenebis(2-thio-, dihydrobromide Pseudourea, 2,2'-tetramethylenedithiodi-, dihydrobromide