2,2'-(Oxydimethylene)bis(2-thiopseudourea) dihydrochloride 40387-52-8 Carbamimidothioic acid, oxybis(methylene) ester, dihydrochloride Di(S,2-isothiuroniumethyl) ether dichloride Pseudourea, 2,2'-(oxydimethylene)bis(2-thio-, dihydrochloride