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n4google.
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
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provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isap:481320376
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isa:379821240
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isa:379821240
rdf:type
prov:Entity
prov:value
R1 and R2 are preferably identical and are preferably each a C1 -C10 -alkyl group, such as methyl or ethyl, a halogen atom such as fluorine, chlorine, bromine or iodine, in particular chlorine, or a trifluoromethylsulfonic acid group.
prov:wasQuotedFrom
n4:com
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isa:379821240