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o-Anisic acid, is a crystalline solid. It is one of the isomers of anisic acid.
A 2427 (OTTO) o-Anisic acid, 98%+ Cas 579-75-9 - used as internal standard during quantification of free and conjugated salicylic acid in tomato (Lycopersicon esculentum) cells by HPLC. It was also employed in the synthesis of pthalides.