Data Views Plants (>= 1 Chemical): 472 All Chemicals: 4 CSV Excel PDF Click on column headings to sort table by that column Chemical Dosage References ESTRONE --Martindale's 28th ZINC --Martindale's 29th PAPAVERINE --Martindale's 29th ARGININE --* *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.