Analysis of information sources in references of the Wikipedia article "Produit naturel" in French language version.
« Natural product: A single chemical compound that occurs naturally. This term is typically used to refer to an organic compound of limited distribution in nature (often called secondary metabolites). »
« "The simplest definition for a natural product is a small molecule that is produced by a biological source." »
« In 1891, following Stahls work on plant biochemistry, Kossel suggested a distinction between basic and secondary metabolism (Stahl 1888). »
« The current, generally accepted concept in line with Kossel’s view is that primary metabolites are chemical components of living organisms that are vital for their normal functioning, while secondary metabolites are compounds which are dispensable. »
« Drug Discovery - Is Mother Nature still the number one source for promising new drugs? »
« "The simplest definition for a natural product is a small molecule that is produced by a biological source." »