1.1.3.19 (S)-2-hydroxy-2-(4-hydroxyphenyl)acetate + O2 - 257530 1.1.3.19 (S)-2-hydroxy-2-(4-hydroxyphenyl)acetate + O2 absolute requirement for molecular oxygen, specific for L-isomer of 4-hydroxymandelic acid 257530 1.1.3.19 (S)-2-hydroxy-2-(4-hydroxyphenyl)acetate + O2 enzyme of degradation pathway from mandelic acid to benzoic acid 257530 1.1.3.19 DL-4-hydroxymandelate + ? - 257531