2-Naphthaleneacetic acid, 6-methoxy-alpha-methyl-, (1,4-piperazinediyl)diethylene ester, (S-(R*,R*))-, bis(methanesulfonate) 97699-71-3 N,N'-Di(alpha-(6-metossi-2-naftil)propionilossi-2-etil)piperazina dimetansolfonato [Italian]