功勞葉中含咖啡堿(caffeine),羽扇豆醇(lupeol),熊果酸(ursolic acid),胡蘿卜甙(daucosterol),地榆糖甙(zigu-g1ucoside)Ⅰ和Ⅱ,苦丁茶甙(cornutaside)A、B、C和D,互為立體異構(gòu)體的苦丁茶糖脂(cornutaglycolipide)A和B,3,4-二咖啡??鼘幩?3,4-dicaffeoylquinic acid),3,5-二咖啡??鼘幩?3,5-dicaffeoylquinicacid),腺甙(adenosi-ne),枸骨葉皂甙I甲酯(ilexside I me-thyl ester),枸骨葉皂甙(ilexside)Ⅱ,29-羥基齊墩果酸-3 -O- L-吡喃阿拉伯糖基-28-O-D-吡喃葡萄糖甙(29-hydroxyoleanolic acid-3-O-L-arabinopyranosyl-28-O- D-glucopyra-noside),新木脂體(neolignan)即2-(3-甲氧基-4-羥苯基)-3-羥甲基-7-甲氧基苯并呋喃-5-丙烯酸甲酯[2-(3-methoxy-4-hydrox-yphenyl)-3-hydroxppethyl-7-methoxy benzofuran-5-propenoic acidmethyl ester]和能促進(jìn)前列腺素I2(PGI2)形成的坡模醇酸-3 -O- L-2-乙酰氧基吡喃阿拉伯糖基-28-O-D-吡喃葡萄糖甙(po-molic acid-3 -O- L-2-acetoxyarabinopyranosyl-28-O-D-glucopy-ranoside)。