Iohexol intermediate 5-Acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide CAS NO: 31127-80-7 Appearance: White to off-white solid Melting point: 274-276℃ Assay: 99.0% min by HPLC Packing size: 25kg/drum or 400kg/bag