17124-68-4 2-(2-Aminoethyl)-1,3-dimethyl-2-thiopseudourea dihydrobromide 2-Aminoethyl-N',N''-dimethylisothiuronium bromide hydrobromide Pseudourea, 2-(2-aminoethyl)-1,3-dimethyl-2-thio-, dihydrobromide