prov:value
| - R11, R12 and R13 are identical or different and are a hydrogen atom, a halogen atom, a C1???C20 alkyl group, a C1???C20 fluoroalkyl group, a C6???C30 aryl group, a C6???C30 fluoroaryl group, a C1???C20 alkoxy group, a C2???C20 alkenyl group, a C7???C40 arylalkyl group, a C8???C40 arylalkenyl group, a C7???C40 alkylaryl group, or R11 and R12, or R11 and R13, together with the atoms binding them, ca
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