About: http://webisa.webdatacommons.org/212603104

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	##STR00295## wherein R.sup.5 and R.sup.6are each independently hydrogen or C.sub.1 C.sub.4 alkyl, with the, proviso that at least one of R.sup.5 and R.sup.6 are other than hydrogen are most especially preferred.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com