natural product

https://doi.org/10.1351/goldbook.14167
  1. Complex mixture derived from natural (biological) sources used in screening as a resource for identification of lead compounds.
  2. Pure compound of natural (biological) origin (whether obtained by purification of natural mixtures or by laboratory synthesis), as opposed to compounds originating from synthetic chemistry.
    Note: Typical origins include extracts from microbes and higher organisms from terrestrial or marine environments.
Source:
PAC, 2011, 83, 1129. (Glossary of terms used in biomolecular screening (IUPAC Recommendations 2011)) on page 1149 [Terms] [Paper]