Synonyms: Benzaldehyde, 3-hydroxy-4-methoxy-, Isovanillin (6CI), p-Anisaldehyde, 3-hydroxy- (7CI,8CI), 3-Hydroxy-4-methoxybenzaldehyde, 2-Methoxy-5-formylphenol, 3-Hydroxy-4-anisaldehyde, 3-Hydroxy-p-anisaldehyde, 4-Methoxy-3-hydroxybenzaldehyde, 5-Formyl-2-methoxyphenol, 5-Formylguaiacol, Isovanillic aldehyde, NSC 82996