1-(3,4,5-Trimethoxybenzyl)-4-(2-guanidinoethyl)-perhydro-1,4-diazepine sulphate 99822-48-7 Guanidine, (2-(hexahydro-4-((3,4,5-trimethoxyphenyl)methyl)-1H-1,4-diazepin-1-yl)ethyl)-, sulfate (2:1)