Optical rotation was determined using an Anton Paar MCP200 automatic polarimeter (Graz, Austria). UV spectrum was measured with a Beckman Coulter DU 730 nucleic acid/protein analyzer (Brea, CA, USA).
This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results