英文别名Beclomethasone Dipropionate Impurity I; Beclometasone Dipropionate EP Impurity I; Beclomethasone Dipropionate impurity 6; Beclomethasone EP Impurity I; (16β)-16-Methyl-17,21-bis(1-oxopropoxy)pregna-1,4,9(11)-triene-3,20-dione; 17α,21-dihydroxy-16β-methylpregna-1,4,9(11)-triene-3,20-dione 17,21-dipropionate; (16Beta)-16-Methyl-17,21-bis(1-oxopropoxy)pregna-1,4,9(11)-triene-3,20-dione 
