英文别名16β-Methyl-17,21-dihydroxypregna-1,4,9(11)-triene-3,20-dione; 17,21-Dihydroxy-16β-methylpregna-1,4,9(11)-triene-3,20-dione; Betamethasone EP Impurity C; (8S,10S,13S,14S,16S,17R)-17-hydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-7,8,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthren-3-one; Betamethasone Impurity 3; (16α)-17,21-dihydroxy-16-methylpregna-1,4,9(11)-triene-3,20-dione; (16Beta)-17,21-Dihydroxy-16Beta-methyl-pregna-1,4,9(11)-triene-3,20-dione 
