o-Vanillin (2-Hydroxy-3-methoxybenzaldehyde) is an organic solid present in the extracts and essential oils of many plants. Its functional groups include aldehyde, ether and phenol. ortho-Vanillin, a compound of the formula C8H8O3,
V 1242 (OTTO) o-Vanillin, 99% Cas 148-53-8 - used to study the solvent-free reaction between o-vanillin and p-toluidine using NMR, DSC and XRD analysis.