About: http://webisa.webdatacommons.org/136524309

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	Particular preference is given to compounds of the formula I, in which one of the radicals Z1 and Z2 is ???CO???O???, ???O???CO???, ???CH2CH2???, ???CH???CH??? or ???C???C??? and the other radicals Z1 and Z2 are a single bond.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com