CAS 51234-09-4 appears in our catalog under these names: 3,4-Dimethoxy-2-methylbenzaldehyde 97%, 3,4-Dimethoxy-2-methylbenzaldehyde, 97%, 97%, 3,4-Dimethoxy-2-methylbenzaldehyde, 98%. Offered by: Ambeed, Chemat, Fluorochem. Available pack sizes: 100mg, 250mg, 1g, 500mg.