About: http://webisa.webdatacommons.org/235494359

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 formula (XI), R1 preferably represents C1 -C4 -allyl or benzyl, in particular methyl, and Hal2 represents chlorine, bromine or iodine.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com