About: http://webisa.webdatacommons.org/323400786

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	wherein R1, R2 and R5 independently are a hydrogen atom or an alkyl group, R3 and R4 independently are alkyl groups containing at least 4 carbon atoms, preferably a C3-C10 alkyl group and more preferably a tertiary butyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com