1,3-Bis(2-dimethylaminoethyl)-2-phenylindene dihydrochloride 21436-82-8 Indene-1,3-bis(ethylamine), N,N,N',N'-tetramethyl-2-phenyl-, dihydrochloride N,N,N',N'-Tetramethyl-2-phenyl-indene-1,3-bis(ethylamine) dihydrochloride