About: http://webisa.webdatacommons.org/381007018

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	a quaternary ammonium salt represented by the formula: ##STR9## (wherein, R1, R2 and R3 are an alkyl group having 1 to 18 carbon atoms, R4 is an alkyl group having 1 to 18 carbon atoms, phenyl group or benzyl group, X is Cl, Br or I),
http://www.w3.org/ns/prov#wasQuotedFrom	google.com