About: http://webisa.webdatacommons.org/171621644

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	The alkyl groups are preferably C1-C10 alkyl groups, such as methyl, ethyl, propyl and butyl.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com