prov:value
| - p, a C2 -C10 -alkenyl group, a C7 -C40 -arylalkyl group, a C7 -C40 -alkylaryl group, a C8 -C40 -arylalkenyl group, an OH group, a halogen atom or pseudo-halogen, the radicals R5, R6, R7 and R8 are identical or different and are a hydrogen atom, a halogen atom, a C1 -C10 -alkyl group which can be halogenated, a C6 -C20 -aryl group, a C7 -C40 -arylalkyl group, a C7 -C40 -alkylaryl group, a C2 -C10 -
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