About: http://webisa.webdatacommons.org/362258500

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	The groups R4 are all typically alkyl groups and conveniently are alkyl groups containing from 1 up to 20 carbon atoms and especially 1 up to 6 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com