<http://webisa.webdatacommons.org/376810528>	<http://www.w3.org/ns/prov#value>	"Preferably, R is an ethyl group, and R1, R2 and R3 are methyl groups." .
<http://webisa.webdatacommons.org/prov/347733114>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/376810528> .
<http://webisa.webdatacommons.org/376810528>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/376810528>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/131467877>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/376810528> .