CAS 21829-25-4 appears in our catalog under these names: Benidipine Impurity 4 (Nifedipine), Nifedipine, Nifedipine, >95% (HPLC), Nifedipine/ 99.39% (existing batch purity), Nifedipine, 98% . Offered by: Chemat Brand, TRC, Mikromol, LoGiCal, Dr. Ehrenstorfer. Available pack sizes: on request, 100mg, 1g, 50mg, 250mg, 10mg, 500mg, 10g.