About: http://webisa.webdatacommons.org/263077044

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	R1 is preferably hydrogen, hydroxy, methyl, ethyl, methoxy or ethoxy, more preferably hydrogen, hydroxy, methyl or methoxy, particularly hydrogen, methyl or methoxy but especially methoxy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com