2-甲基丙烯酸 [(3S)-2,3,3aalpha,4,4a,5,7aalpha,8,9,9aalpha-十氢-9beta-羟基-3beta,4abeta,8alpha-三甲基-2,5-二氧代薁并[6,5-b]呋喃-4alpha-基] 酯
25873-31-8