褐藻 · 其他C20H34O2 式量 306.2559(1~{S},2~{E},6~{E},10~{R})-10-(1-hydroxy-1,5-dimethyl-hex-4-enyl)-3,7-dimethyl-cyclodeca-2,6-dien-1-olDictyota masoniiNPASS