32407-67-3 67828-55-1 Benzeneacetic acid, alpha-hydroxy-3,4-dimethoxy-, ethyl ester EINECS 251-025-0 Ethyl 3,4-dimethoxy-alpha-hydroxyphenylacetate Ethyl 3,4-dimethoxymandelate Methyl dl-3,4-dimethoxy-alpha-hydroxyphenylacetate