Compound as reactive (1)

H₂O + 4-hydroxy-3-methylbenzaldehyde + NADP⁺ → 2 H⁺ + NADPH + 4-hydroxy-3-methylbenzoate

Compound as product (1)

an oxidized electron donor + 4-hydroxy-3-methylbenzyl alcohol → 4-hydroxy-3-methylbenzaldehyde + a reduced electron donor

Reversible reaction (1)

2 an oxidized electron donor + H₂O + 2,4-xylenol ↔ 2 a reduced electron donor + 4-hydroxy-3-methylbenzaldehyde