1-Butanone, 4-(3-methyl-1-piperidinyl)-1-(2,4,6-trimethoxyphenyl)-, butanedioate (1:1) 138230-22-5 Butanedioic acid, compd. with 4-(3-methyl-1-piperidinyl)-1-(2,4,6-trimethoxyphenyl)-1-butanone (1:1) CRL 41034 Crl 41 034