19767-91-0 2-(4-Hydroxy-3-methoxyphenyl)-2-oxoethyl nicotinate BRN 0428610 EINECS 243-286-4 Nicotinic acid, 2-ester with 2,4'-dihydroxy-3'-methoxyacetophenone alpha-Nicotinoyloxy-4-hydroxy-3-methoxyacetophenone