1,3-Benzodioxan-2-carboxylic acid, 4,6-dimethyl-4-phenyl-, methyl ester, (E)- 4H-1,3-Benzodioxin-2-carboxylic acid, 4,6-dimethyl-4-phenyl-, methyl ester, trans- 86617-10-9 BRN 5093727 trans-4,6-Dimethyl-4-phenyl-1,3-benzodioxan-2-carboxylic acid methyl ester