<http://webisa.webdatacommons.org/371356291> <http://www.w3.org/ns/prov#value> "in which each R is a hydrogen atom or an organic substituent, for example alkyl such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, vinyl, alkyne, or others." . <http://webisa.webdatacommons.org/371356291> <http://www.w3.org/ns/prov#wasQuotedFrom> <google.com.au> . <http://webisa.webdatacommons.org/371356291> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/201871153> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/371356291> .