| 摘要 |
<p>The invention concerns a method of marking a hydrocarbon liquid comprising the step of adding to said liquid, as a tracer compound, a borondipyrromethene compound of Formula I: Wherein each X is independently selected from the group consisting of a hydrogen atom, a bromine atom, a fluorine atom, a partially or fully halogenated alkyl group, a linear, branched or cyclic alkyl group and a phenyl group substituted with one or more halogen atoms, an alkyl group or a halogenated alkyl group; each Y is independently selected from the group consisting of a bromine atom, a fluorine atom, a partially or fully halogenated alkyl group, a branched or cyclic C1 - C9 alkyl group and a phenyl group substituted with at least one alkyl group and/or a halogenated alkyl group; Z is selected from the group consisting of (i) a phenyl group substituted with one or more halogen atoms, an aliphatic group or a halogenated aliphatic group, (ii) a partially or fully halogenated alkyl group or (iii) a linear, branched or cyclic C1 - C20 alkyl group with the proviso that when each Y is a fluorine atom, Z is not a linear or branched C1 - C20 alkyl group.</p> |
