种子含曼密苹果素(mammeisin),铁力木精(mesuagin),曼密苹果精(mammeigin),铁力木苦素(mesuol),铁力木素(mesuarin),铁力木酸(mesuanicacid),铁力木双黄酮(mesuaferrone)A等。叶含铁力木黄酮二糖甙(mesuein)；茎含α-香树脂醇(α-amyrin),β-谷甾醇(β-sitosterol)和铁力木醇(mesuafenol)。心材含β-谷甾醇,豆甾醇(stigmasterol),1,5-二羟基呫吨酮(1,5-dihydroxyxanthone),1,7-二羟基呫吨酮(euxanthone),2-甲氧基呫吨酮(2-methoxyxanthone),1-羟基-7-甲氧基呫吨酮(eux-anthone-7-methylether),1,5-二羟基-3-甲氧基呫吨酮(1,5-dihy-droxy-3-methoxyxanthone),1,5,6-三羟基呫吨酮(1,5,6-trihy-droxvxanthone),铁力木新呫吨酮(ferrxanihone),3-羟基-4-甲氧基呫吨酮(3-hydroxy-4-methoxyxanthone),1-羟基-5-甲氧基呫吨酮(1-hydroxy-5-methoxyxanthone),4-羟基呫吨酮(4-hydrox-yxanthone),2-羟基呫吨酮(2-hydroxyxanthone),1,3,6-三羟基-7,8-二甲氧基呫吨酮(1,3,6-trihydroxy-7,8-dimethoxyxan-thone)，3,6-二羟基-1,7,8-三甲氧基呫吨酮(3,6-dihyroxy-1,7,8-trimethoxyxanthone)。