About: http://webisa.webdatacommons.org/138885658

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	##STR00002## R.sub.1 and R.sub.2 can be the same or different and can be selected from the group consisting of hydrogen, ethyl, 3-dimethylamino propyl, cyclohexyl, 2-morpholinoethyl, isopropyl, phenyl or other organic moiety such as an
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com