About: http://webisa.webdatacommons.org/143241450

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	In still another embodiment, R may be a straight chain or branched C1-3 alkyl group, such as methyl, ethyl, and propyl.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com