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PrefixNamespace IRI
n5google.
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:281279619
rdf:type
prov:Entity
prov:value
The groups R1 to R4 in the forgoing structures, when not representing an alkynyl group, can include hydrogen or other organic groups.
prov:wasQuotedFrom
n5:com
Subject Item
isap:362980092
prov:wasDerivedFrom
isa:281279619