2,11-dimethyl-(6ar,6bt,12bt,12cc)-6a,6b,12b,12c-tetrahydro-cyclobuta[1,2-c,4,3-c'] dichromium ene-6,7-dione

1-甲氧基甲氧基-4-甲基苯; 4-(甲氧基甲氧基)甲苯

硫酸

4-hydroxy-toluene-3,5-disulfonic acid

2-[(Z)-2-(diethylcarbamoyl)vinyl]-4-methylphenyl acetate