About: http://webisa.webdatacommons.org/334347164

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	ach occurrence from the group: H, C1-C6 alkyl, benzyl and phenyl; and R23 is a bond to the metal M; with the proviso that when said MRI contrast agent is of formula (V) and X is P(???O)R9, A is not CH2. 10.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com