About: http://webisa.webdatacommons.org/182070841

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	Most preferably, R is a C1 alkyl, C3 alkyl, or C4 alkyl, and x is 2, 3 or 4. [0039] In another preferred embodiment, R represents an alkyl group having from 1 to 8 carbons, and x is 0 to 10.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es