About: http://webisa.webdatacommons.org/246932492

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	The useful quaternary ammonium compounds are generally of the formula [R1 R2 R3 R4 N]+ X-, wherein R1, R2, R3 and X are as defined above, R4 is an organic radical selected from among those defined for R1, R2 and R3.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com