About: http://webisa.webdatacommons.org/416069549

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	Each of R3, R4, R5, R6, R7 and R8, which are independent of one another, is a hydrogen atom or an alkyl group, preferably a C1-12 alkyl group, particularly preferably a C6-12 alkyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es