Catalyst & Active AgentChina Manufacturer Supplying High Quality (S) -N1- (2-aminoethyl) -3- (4-ethoxyphenyl) Propane-1, 2-Diamine. 3HCl with CAS: 221640-06-8, Find details about China Intermediate, Pharmaceutical Intermediate from Manufacturer Supplying High Quality (S) -N1- (2-aminoethyl) -3- (4-ethoxyphenyl) Propane-1, 2-Diamine. 3HCl with CAS: 221640-06-8