About: http://webisa.webdatacommons.org/82824314

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Although a range of chemistries is available through natural side-chain diversity, some functionalities such as halogens, ketones, azides, alkenes, and alkynes are not found in nature.
http://www.w3.org/ns/prov#wasQuotedFrom	openthesis.org