124500-21-6 2(3H)-Furanone, dihydro-5-(4-chlorophenyl)-3-(1-piperidinylmethyl)-, (Z)-2-butenedioate (1:1) Dihydro-5-(4-chlorophenyl)-3-(1-piperidinylmethyl)-2(3H)-furanone (Z)-2-butenedioate (1:1)