Data Views Exclude Ubiquitous Chemicals Activities: 572 Chemicals w/Activities: 63 CSV Excel PDF All Chemicals: 102 Previous1234 Show all rows. Paginate rows. Click on column headings to sort table by that column # Activity Chemical Part All Flower Leaf Plant Seed Shoot Low PPM High PPM StdDev *Reference 89 89 URSOLIC-ACID Plant -- -- * 24 24 VANILLIC-ACID Plant -- -- * 77 77 ZINC Seed 0.8 2.5 -1.21 * *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.