老鸦烟筒花根含三十一烷(hentriacontane),拉杷醌醇(lapachol),1-三十一烷醇(l-hentriacontanol),β-谷甾醇(β-sitoterol),泡桐素(paulownin)。 叶含β-胡萝卜素(β-carotene),粗毛豚草素(hispidulin),粗毛豚草素-7-芸香糖甙(hispidulin-7-rutinoside)。 花含高山黄芩素(scutellarein),高山黄芩素-5-半乳糖甙(scutellarein-5-galactoside),烟筒花素(hortensin),粗毛豚草素,滨蓟黄素(cirsimaritin),异连翘环己醇(isorengyol),毛柳甙(saidroside)、2-苯乙基芸香糖甙(2-phenethyl rutinoside),2-(3,4-二羟基)苯乙基葡萄糖甙(2-(3,4-dihydroxy)phenethylglucoside],洋丁香酚甙(acteoside),对-香豆醇葡萄糖甙(p-coumaryl alcohol glucoside),异丁香油酚葡萄糖甙(isoeugenol glu-coside),梾木甙(cornoside),连翘环己醇酮(rengyolone),连翘环乙醇甙(rengvoside)A、B,连翘环己醇(rengyol)。8-O-β-D-异连翘环己醇吡喃葡萄糖甙(8-O-O-β-D-glucopyranosyl isorengyol),反式-1-(2-羟基乙基)环己烷-1,4-二醇[trans-l-(2-hydroxyethyl)cyclohexane-l,4-diol),柳穿鱼素(pectolinarigenin),花芽含烟筒花碱甙(millingtonine)。