2,6-Dimethoxyphenol 97%2,6-二甲氧基苯酚2,6-Dimethoxyphenol邻苯三酚 1,3-二甲醚Pyrogallol 1,3-dimethyl etherSyringol2-Hydroxy-1,3-dimethoxybenzene2,6-DimethoxyphenolSyringol2,6-Dimethoxyphenol2,6-Dimethoxyphenol2,6-dimethoxyphenolSyringol2-hydroxy-1,3-dimethoxybenzenePyrogallol 1,3-dimethyl ether1,3-dimethoxy-2-hydroxybenzene1,3-dimethyl pyrogallate1,3-di-O-methylpyrogallol