CAS 3943-80-4 appears in our catalog under these names: Ethyl 4–hydroxy–3，5–dimethoxybenzoate, ethyl 4-hydroxy-3,5-dimethoxy-benzoate, Ethyl 4-hydroxy-3,5-dimethoxybenzoate 97%, Ethyl syringate, 97%, 97%. Offered by: GLPBio, Biosynth, Ambeed, Chemat. Available pack sizes: 5g, 1g.