2,6-Dimethoxyphenol 97%2,6-Dimethoxyphenol2,6-二甲氧基苯酚Pyrogallol 1,3-dimethyl ether邻苯三酚 1,3-二甲醚Syringol2-Hydroxy-1,3-dimethoxybenzeneSyringol2,6-Dimethoxyphenol2,6-DimethoxyphenolSyringol2,6-dimethoxyphenol2,6-Dimethoxyphenol1,3-dimethyl pyrogallatePyrogallol 1,3-dimethyl ether1,3-di-O-methylpyrogallol2-hydroxy-1,3-dimethoxybenzene1,3-dimethoxy-2-hydroxybenzene