About: http://webisa.webdatacommons.org/37447416

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	In some embodiments, R4 is a C1-C4 alkyl or a substituted C1-C4 alkyl and R3 is H. In some such embodiments, one of R3 or R4 is a methyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com