About: http://webisa.webdatacommons.org/413146757

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	We particularly prefer those compounds in which at least two of R.sub.2, R.sub.3, R.sub.5 and R.sub.6 is other than hydrogen.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com