CAS 1939-36-2 appears in our catalog under these names: 1,3–Propanediamine–N,N,N',N'–tetraacetic Acid, 1,3-Diaminopropane-N,N,N²,N²-tetraacetic acid, 1,3-Propanediamine-N,N,N',N'-tetraacetic Acid, >98.0%(T), Propanediaminetetraacetic Acid 98%, 1,3-DIAMINOPROPANE-N,N,N',N'-TETRAACETI&. Offered by: GLPBio, Biosynth, TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 100g, 500g, 0,25g, 2,5g, 25g, 5g, 250G, 50 g.