Molecular Weight - Formula - Match Compounds Sub-Structure Exact Match Open here and redraw the structure. Search Search Results Total 2305 Results 1 Per page 10 20 30 40 50 60 70 80 90 100 ID 1856 Unknown HILIC cystine CROWNPAK® CR-I(+) ( 3 x 150 mm 5 µm ) acetonitrile / ethanol / water / trifluoroacetic acid = 80 / 15 / 5 / 0.5