Data Views Exclude Ubiquitous Chemicals Activities: 661 CSV Excel PDF Chemicals w/Activities: 94 All Chemicals: 130 Previous1..25262728293031323334 Show all rows. Paginate rows. Click on column headings to sort table by that column # Chemicals Activity *Reference 4 4 Xanthine-Oxidase-Inhibitor * *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.