(taraxasterol)36%,羽扇豆醇(lupeol)28%；三萜乙酸酯有α-香树脂酸乙酸酯(α-amyrinacetate)3%,β-香

环氧树脂醇乙酸酯(β-amyrinacetate)8%,计曼尼醇乙酸酯(germanicolacetate)5%,ψ-蒲公英花甾醇乙酸酯(ψ-

taraxasterolacetate)19%,蒲公英花甾醇乙酸酯(taraxasterolacetate)21%,羽扇豆醇乙酸酯

(lupeolacetate)44%。另有报导,从干躁滇苦菜中测得含C17-35乙烷1.7%,C12-32人体脂肪酯17.4%,三萜乙酸酯

16.1%,C22-28醇19%,甾醇11.7%。此外,还从本产品中分刘海到表-无羁萜醇乙酸酯(epi-friedelinolacetate),豆甾醇

(stignasterol),芹菜素(apigenin),木犀草素(luteolin)及他们的7-葡萄糖醇酸甙。苦苣菜甙

(sonchuside)D、E、F、G、H、I,及苦苣菜丁烯酮甙(sonchuionoside)A、B、C,霪羊霍甙(icariside)B。