About: http://webisa.webdatacommons.org/20724759

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	R8, R9, R10 and R11 are a hydrogen atom or an alkyl, alkenyl or aralkyl group having carbon numbers 4 to 8, respectively; three or more of them should not be hydrogen atoms at the same time.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr