Data Views Exclude Ubiquitous Chemicals Activities: 42 Chemicals w/Activities: 7 All Chemicals: 22 CSV Excel PDF Previous12 Show all rows. Paginate rows. Click on column headings to sort table by that column # Activity Chemical Part All Plant Root Low PPM High PPM StdDev *Reference 27 27 TETRANDRINE Plant -- -- * 0 TETRANDRINE-N-2'-OXIDE Plant -- -- * *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.