About: http://webisa.webdatacommons.org/12907306

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 R4 and R5 is a hydrogen atom, ester group or lactone ring-containing group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com.au