1,2,4,5-四甲氧基苯

2,5-dihexyl-3,6-dihydroxycyclohexa-2,5-diene-1,4-dione

5,7,12,14-tetrahydroquinoxalino[2,3-b]phenazine

2-[2,4,5-tris(carboxymethoxy)phenoxy]acetic acid

benzene-1,2,4,5-tetrakis(oxyacetic acid) tetraethyl ester