3,4-dimethoxybenzoic acid is a member of the class of benzoic acids that is benzoic acid substituted by methoxy groups at positions 2 and 3. It has a role as an allergen and a plant metabolite. It derives from a hydride of a benzoic acid.

Methylophiopogonone A is a homoisoflavonoid that is 4H-1-benzopyran-4-one substituted by hydroxy groups at positions 5 and 7, methyl groups at positions 6 and 8 and a (2H-1,3-benzodioxol-5-yl)methyl group at position 3 respectively. It has a role as a plant metabolite. It is a member of resorcinols and a homoisoflavonoid. Methylophiopogonone A is a natural product from Ophiopogon japonicus.