About: http://webisa.webdatacommons.org/308465730

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	In the general formula (f), R10 and R11 are, independently of each other, a hydrogen atom or alkyl group, and M is a hydrogen atom or alkali metal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com