The hydroxyl groups on the surface of the beta-cyclodextrin are reacted with either “S” or “R,S” propylene oxide. This has the effect of extending hydrogen-bonding capabilities to accommodate greater distances of the chiral center from an aromatic ring structure. The “S” version sometimes shows enhanced selectivity and efficiency for some separations, e.g., methadone.
22224AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 10 μm particle size, L × I.D. 25 cm × 4.6 mm pricing
20218AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 10 cm × 2.1 mm pricing
20222AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 10 cm × 4.6 mm pricing
20219AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 15 cm × 2.1 mm pricing
20223AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 15 cm × 4.6 mm pricing
20234AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 25 cm × 10.0 mm pricing
20220AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 25 cm × 2.1 mm pricing
20244AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 25 cm × 21.2 mm pricing
20224AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 25 cm × 4.6 mm pricing
20221AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Column 5 μm particle size, L × I.D. 5 cm × 4.6 mm pricing
21102AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Guard Cartridge, 5 μm particle size, L × I.D. 2 cm × 4.0 mm pricing
21012AST Astec CYCLOBOND™ I 2000 SP Chiral HPLC Guard Column, 5 μm particle size, L × I.D. 2 cm × 1.0 mm pricing
21150AST Stand-Alone HPLC Guard Column Holder for use with Supelguard and Astec guard cartridges (2 cm x 3.0, 4.0 and 4.6 mm I.D.) pricing
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