About: http://webisa.webdatacommons.org/313062239

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	These groups generally contain from 2 to 6 carbon atoms and especially from 2 to 4 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com