About: http://webisa.webdatacommons.org/381623640

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 which M1 has the meaning given in formula I and X is a halogen atom, preferably chlorine, and if appropriate derivatizing the resulting reaction product.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr