About: http://webisa.webdatacommons.org/402059216

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	Azo compounds used are mainly 2,2???-azobis(isobutyronitrile), 2,2???-azobis(2,4-dimethylvaleronitrile), and 2,2???-azobis(amidinopropyl) dihydrochloride (AIBA, corresponding to V-50 from Wako Chemicals).
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com