About: http://webisa.webdatacommons.org/124045936

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	, a phenyl group, or a cyclic group, and R2 is a hydrogen, a methyl group, or a mixture thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es