About: http://webisa.webdatacommons.org/368624033

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	R9 to R14 are identical or different and are a hydrogen atom, a C1 -C10 -alkyl group or a C6 -C20 -aryl group, or
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca