CAS 29865-90-5 appears in our catalog under these names: 3,4-Dimethoxy-5-hydroxybenzaldehyde, min. 95 %, 5 g, 5-Hydroxy-3,4-dimethoxybenzaldehyde, 3,4-Dimethoxy-5-hydroxybenzaldehyde, 3,4-DIMETHOXY-5-HYDROXYBENZALDEHYDE, 98%, 3,4-Dimethoxy-5-hydroxybenzaldehyde, 98%, 98%. Offered by: Roth, TRC, Biosynth, Sigma-Aldrich, Chemat. Available pack sizes: 5g, 1g, 2,5g, 250mg, 2g, 10g, 25g, 50g.