Data Views Exclude Ubiquitous Chemicals Activities: 187 Chemicals w/Activities: 19 All Chemicals: 42 CSV Excel PDF Show All Paginate Previous123 Click on column headings to sort the list on the column # Activity Chemical Part All parts ... Leaf Plant Root Low PPM High PPM StdDev *Reference 1 1 TROPINE Root -- -- * 22 22 UMBELLIFERONE Root -- -- * *Unless otherwise noted all references are to Duke, James A. 1992. Handbook of phytochemical constituents of GRAS herbs and other economic plants. Boca Raton, FL. CRC Press.