CAS 68399-81-5 appears in our catalog under these names: TAPSO, 99.00%, 3-[N-Tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic Acid [Good's buffer component for biological research], >99.0%(T), TAPSO, for biochemistry, TAPSO 99%, 3-[N-Tris(hydroxymethyl)methylamino]-2-hydroxypropanesulfonic Acid, 99%, 99%. Offered by: Chemat, TCI, Thermo Scientific (Acros), Ambeed, MedChemExpress. Available pack sizes: 100g, 1kg, 250g, 25g, 500g, 5g, 25 g, 100 g.