About: http://webisa.webdatacommons.org/250419652

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	It is preferred that R6 and R7 are alkyl, and it is especially preferred that they are methyl or ethyl.
http://www.w3.org/ns/prov#wasQuotedFrom	google.de