This Structure Data File (SDfile) is associated with the thesis: Eom, K.D. Total Synthesis of (+)-Asteltoxin. Ph.D. Thesis, The University of Alabama, 2000. and https://search.ebscohost.com/login.aspx?direct=true&db=cat00456a&AN=ua.1128100&site=eds-live&scope=site&custid=s4594951&groupid=main&profid=eds&authtype=ip,guest It is distributed by the University of Alabama Libraries. The SDfile is licensed under a Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). Chemical Structure Data Files can be viewed/processed with most cheminformatics toolkits and stand-alone software packages: See https://en.wikipedia.org/wiki/Cheminformatics_toolkit. Note that this is the archived non-standardized chemical substance data. If you are looking for the standardized data" see the UA Libraries PubChem Data Source: https://pubchem.ncbi.nlm.nih.gov/source/15645. The specific substances associated with this data set are indicated by the local DATSOURCE_REGID identifiers within the SDfile. These identifiers can be used to cross-reference the data within PubChem. Moreover, additional information about the structure data compiling workflow is available on the UA Libraries GitHub Chemical Structures Project Page: https://github.com/ualibweb/UALIB_ChemStructure