CAS 87625-92-1 appears in our catalog under these names: Nifedipine Impurity 20, Nifedipine Impurity 3, Nifedipine Impurity 9, Nicardipine Impurity 17, Methyl 2-Methyl-6-(3-nitrophenyl)-4-oxo-2-cyclohexene-1-carboxylate, >95% (HPLC). Offered by: Chemat Brand, Hubei YoungXin, TRC. Available pack sizes: on request, 10mg, 25mg, 50mg, 100mg, 200mg, 250mg, 2,5g.