CAS 3900-49-0 appears in our catalog under these names: 1,6-Dimethoxynaphthalene, 98+% , 1,6-Dimethoxynaphthalene, 2,5-Dimethoxynaphthalene 98%, 2,5-Dimethoxynaphthalene, 98%, 98%, 1,6-Dimethoxynaphthalene, 98%. Offered by: Thermo Scientific (Alfa Aesar), Biosynth, Ambeed, Chemat, Fluorochem. Available pack sizes: 1g, 5g, 25g, 10g, 50g, 100g, 500g, 1kg.