About: http://webisa.webdatacommons.org/290518089

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	erably divalent, compound such as a dicarboxylic acid, a diamine, an aminocarboxylic acid, a dialdehyde, a diimide, a diisocyanate, etc.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com