2916: Unsaturated acyclic, cyclic monocarboxylc acid, deriv

291611: Acrylic acid, salts 291612: Acrylic acid esters 291613: Methacrylic acid, salts 291614: Methacrylic acid esters 291615: Oleic,linoleic or linolenic acids, salts & esters 291619: Unsaturated acyclic monocarboxylic acids, derivatives 291620: Cyclan-/cyclen-/cycloterpen-monocarboxylic acid/deriv 291631: Benzoic acid, its salts & esters 291632: Benzoyl peroxide and benzoyl chloride 291633: Phenylacetic acid, its salts & esters 291639: Aromatic monocarboxylic acids and derivatives, nes 2916: Unsaturated acyclic, cyclic monocarboxylc acid, deriv