About: http://webisa.webdatacommons.org/222836577

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 ##STR69## group in which R8 and R9, which may be identical or different, are a hydrogen atom or a methyl or ethyl radical, or a --CN group. 3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com