<http://webisa.webdatacommons.org/prov/58434566>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/265881518> .
<http://webisa.webdatacommons.org/265881518>	<http://www.w3.org/ns/prov#value>	"In the formula, R1 and R2 may be the same as or different from each other and are a hydroxyl group, an alkyl group, an alkoxy group, --NR1 R2 group (R1 and R2 are an alkyl group or an aryl group), --NR1 COR2 (R1 and R2 are an alkyl group or an aryl group), --COR1 group (R1 is an alkyl group or an aryl group), --OCOR1 group (R1 is an alkyl group or an aryl group), an aryl group, --ONR1 R2 group (R1" .
<http://webisa.webdatacommons.org/prov/140628263>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/265881518> .
<http://webisa.webdatacommons.org/265881518>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/265881518>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/141656357>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/265881518> .