Molecular Weight - Formula - Match Compounds Sub-Structure Exact Match Open here and redraw the structure. Search Search Results Total 2305 Results 2 Per page 10 20 30 40 50 60 70 80 90 100 ID 1492 Amphoteric Normal Phase Alvimopan CHIRALPAK® IE ( 4.6 x 250 mm 5 µm ) n-hexane / ethanol / triethylamine = 75 / 25 / 0.1 ID 1660 Amphoteric Polar Phase Alvimopan CHIRALPAK® ZWIX(+) ( 4 x 250 mm 3 µm ) acetonitrile / tetrahydrofuran / water / formic acid / diethylamine = 490 / 490 / 20 / 1.9 / 2.6