3-Hydroxymandelic acid (CAS No.17119-15-2), its synonyms are m-Hydroxymandelic acid ; 2-hydroxy-2-(3-hydroxyphenyl)acetic acid ; 3,α-Dihydroxybenzeneacetic acid ; α,3-Dihydroxybenzeneacetic acid ; Alpha,3-Dihydroxybenzeneacetic acid .