Search Search Conditions Compound Name Butorphanol Search Results Total 2305 Results 1 Per page 10 20 30 40 50 60 70 80 90 100 ID 1498 Amphoteric Normal Phase Butorphanol CHIRALPAK® IB ( 4.6 x 250 mm 5 µm ) n-hexane / ethanol / diethylamine = 80 / 20 / 0.1