About: http://webisa.webdatacommons.org/373741080

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	Substituents such as amino or hydroxy (with free dissociable hydrogen) preferably are not bound to carbon atoms that participate at a double bond, and also other subtituents that are not sufficiently stable are preferably excluded.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com