1,6-Hexanedione, 1,6-diphenyl-2,5-bis(1-piperidinylmethyl)-, dihydrochloride 1,6-Hexanedione, 2,5-bis(1-piperidinylmethyl)-1,6-diphenyl-, dihydrochloride 136767-09-4 2,5-Bis(1-piperidinylmethyl)-1,6-diphenyl-1,6-hexanedione dihydrochloride