上游原料
2-Oxoacetic acid; Glyoxylic Acid1,2-bis(4-methoxyphenyl)-1-ethanone2-hydroxy-3,4-bis(4-methoxyphenyl)-4-oxobutyric acid4-hydroxy-5,6-bis(4-methoxyphenyl)-4,5-dihydro-3(2H)-pyridazinone5,6-bis(4-methoxyphenyl)-3(2H)-pyridazinone1-chloro-4-[(E)-3-chloro-1-propenyl]benzeneUvic Acid; Tartaric acid; Dihydroxysuccinic acid; 2,3-Dihydroxybutanedioic acid