1-Piperazinepropanoic acid, 4-(2-(diphenylmethoxy)ethyl)-, sodium salt, hemihydrate 1-Piperazinepropionic acid, 4-(2-(diphenylmethoxy)ethyl)-, sodium salt, hemihydrate 4-(2-(Diphenylmethoxy)ethyl)-1-piperazinepropionic acid sodium salt hemihydrate 61897-00-5