CAS 28289-54-5 appears in our catalog under these names: 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine, 96%, Pethidine EP Impurity B, 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine , >95% (HPLC), 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine, >95% (HPLC), 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (1mg/ml in Acetonitrile). Offered by: Combi-blocks, Chemat Brand, TRC, GLPBio, Biosynth. Available pack sizes: 5g, 10g, 250mg, 1g, on request, 10mg, 25mg, 50mg.