About: http://webisa.webdatacommons.org/111548503

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 the case of (i), it is preferred that two of R9 -R11 are alkyl groups and the remainder is a hydrogen atom or an alkyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com