About: http://webisa.webdatacommons.org/97281673

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	oxy ornitrogen containing heterocyclic radical and R2, R3 and R4 are hydrogen or the same as R1, and at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4 is hydrogen, said alkyl radicals including the alkyl portion of the alkaryl
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com