Simultaneous determination of chlorogenic acid, rutin, quercetin, and luteolin in kunlun snow daisy for uighur medicine by RP-HPLC Polyacetylenes from capitulum of Coreopsis tinctoria Induction of mice death by toxicity components from large-dose Coreopsis tinctoria extract Response surface optimization of purification process for pigment from Coreopsis tinctoria by macroporous resins Response surface optimization of ultrasonic-assisted pigment extraction from Coreopsis tinctoria Chemical constituents of Coreopsis tinctoria A new bisabolane-type sesquiterpenoid from Coreopsis tinctoria