About: http://webisa.webdatacommons.org/222624929

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 Y being the same or different when n is greater than 1 and Y being other than hydrogen or halogen when R1 and R2 are both hydrogen; and salts and metal complexes thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com