About: http://webisa.webdatacommons.org/104445602

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	ach H, NH2, N(CH3)2, CH3, CH3 O, OH or a halogen atom, and R3 is a hydrogen atom or a methyl group, k is a positive integer satisfying the expression:
http://www.w3.org/ns/prov#wasQuotedFrom	google.com