About: http://webisa.webdatacommons.org/159033089

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 side chain can be essentially any hydrophilic moiety, preferably a polyalkylene oxide such as polyethylene glycol.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es