CAS 26545-58-4 appears in our catalog under these names: Disodium methylenebisnaphthalenesulfonate, Disodium methylenedinaphthalenesulfonate, 95%, 95%, Disodium methylenedinaphthalenesulfonate, 95%. Offered by: Biosynth, Chemat. Available pack sizes: 1kg, 5kg, 10kg, 25kg, 500g, 2.5kg.