Betamethasone Dipropionate Synonyms: Betamethasone 17, 21-dipropionate; diproderm; diprolene CAS: 5593-20-4 EINECS: 227-005-2 Assay: 97-103%. USP30 Packing: 1 kg tin or foil bag; 5kgcardboard drum Character: White Crystalline Solid. Usage: Active Pharmaceutical Ingredient (API), Glucocorticoid. Usaged as anti-inflammatory and antibacterial ointment for dermatosis.