Product name: 1, 3-propanediamine Molecular formula: C3H10N2 Molecular weight: 74.13 CAS No.: 109-76-2 Specification: appearancecolorless transparent liquidcolourity(APHA)20 Max.assay(GC)99.0% Min.water(K.F)1.0% Max.total impurities0.50% Max.singal inpurity0.2% Max.Fe3PPM Max.heavy metals5PPM Max.