CAS 13235-36-4 appears in our catalog under these names: Ethylenediaminetetraacetic acid tetrasodium salt tetrahydrate, 98%, Edta disodium salt, 98%, Ethylenediaminetetraacetic Acid (EDTA) Tetra-Sodium Salt, Ethylenediaminetetraacetic acid tetrasodium salt tetrahydrate, Tetrasodium Ethylenediaminetetraacetate Tetrahydrate, >98.0%(T). Offered by: Combi-blocks, Chemat Brand, Biosynth, TCI, Thermo Scientific (Acros). Available pack sizes: 5g, 500g, 1kg, 100g, 25g, on request, 0,5kg, 0,25kg.