134-96-3 3,5-Dimethoxy-4-hydroxybenzaldehyde 3,5-Dimethoxy-4-hydroxybenzene carbonal 4-Hydroxy-3,5-dimethoxybenzaldehyde Benzaldehyde, 3,5-dimethoxy-4-hydroxy- Benzaldehyde, 4-hydroxy-3,5-dimethoxy- Gallaldehyde 3,5-dimethyl ether NSC41153 SYRINGIC ALDEHYDE Syringaldehyde Syringylaldehyde