Data Views Exclude Ubiquitous Chemicals Activities: 17 Chemicals w/Activities: 2 CSV Excel PDF All Chemicals: 28 Click on column headings to sort table by that column # Activity Chemical Part All Plant Root Seed Stem Wood Low PPM High PPM StdDev *Reference 13 13 PALMITIC-ACID Seed -- -- * 5 5 QUASSIN Wood -- 500.0 -1.0 * *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.