Compound as reactive (1)

a reduced electron donor + oxygen + 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol → an oxidized electron donor + H₂O + 3-demethylubiquinol-6

Compound as product (3)

4 a reduced ferredoxin [iron-sulfur] cluster + 5 H⁺ + 2-hexaprenyl-3-methyl-6-methoxyaminophenol + oxygen → 4 an oxidized ferredoxin [iron-sulfur] cluster + H₂O + ammonium + 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol

H₂O + H⁺ + 2-hexaprenyl-3-methyl-6-methoxyaminophenol → ammonium + 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol

S-adenosyl-L-methionine + 2-methoxy-6-all trans-hexaprenyl-1,4-benzoquinol → S-adenosyl-L-homocysteine + H⁺ + 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol

Reversible reaction (1)

2 H⁺ + oxygen + 6-methoxy-3-methyl-2-all-trans-hexaprenyl-1,4-benzoquinol ↔ H₂O + 3-demethylubiquinol-6