About: http://webisa.webdatacommons.org/23463220

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	At least either one of the two carboxyl groups may be esterified with a lower alkyl group, such as a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, or a tertial butyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com