(4aS,4bR,5aR,6aS,7R,8R,9aS,9bS)-7-羟基-7-(2-羟基乙酰基)-4a,6a,8-三甲基-5a,6,6a,7,8,9,9a,9b,10,11-十氢环戊五[1,2]菲[4,4a-b]奥西林-2(4aH)-酮(地塞米松杂质)
(4aS,4bR,5aR,6aS,7R,8R,9aS,9bS)-7-hydroxy-7-(2-hydroxyacetyl)-4a,6a,8-trimethyl-5a,6,6a,7,8,9,9a,9b,10,11-decahydrocyclopenta[1,2]phenanthro[4,4a-b]oxiren-2(4aH)-one?(DexamethasoneImpurity)
14622-47-0