About: http://webisa.webdatacommons.org/347296470

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	Preferably X is an alkyl, aryl, alkylaryl or alkylcycloalkyl group containing 1 to 20 carbon atoms and optionally 1 to 10 hetero atoms and comprising at least one group which is positively or negatively charged.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com