CAS 1193111-39-5 appears in our catalog under these names: sulfo–SPDB, sulfo-SPDB, sulfo-SPDB 95%, 1-(2,5-dioxopyrrolidin-1-yloxy)-1-oxo-4-(pyridin-2-yldisulfanyl)butane-2-sulfonic acid, 95%, 95%, sulfo-SPDB, 95.0%. Offered by: GLPBio, Biosynth, Ambeed, Chemat, MedChemExpress. Available pack sizes: 5mg, 1mg, 10mg, 100mg, 25mg, 50mg, 250mg, 10 mg.