倍他米松杂质51

倍他米松杂质52 倍他米松杂质43 Betamethasone Impurity 50 Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-9-chloro-11,17-dihydroxy-16-methyl-, (11β,16β)- 倍他米松杂质55 倍他米松杂质 7 倍他米松环氧 倍他米松杂质53 倍他米松杂质44 Dexamethasone Impurity 11 倍他米松杂质 D 倍他米松杂质 8 倍他米松杂质54 6α-Bromobetamethasone 21-Acetate 倍他米松杂质46 倍他米松杂质45 倍他米松杂质42(21-半缩醛倍他米松)