abstract |
A biologically-derived fuel of the petroleum hydrocarbon, or a liquid formula C {Ph (R 1) i (OR 2) j} 2 {Ph (R 3) m (OR 4) n} {Ph (R 5) o (OR 6) p} (wherein, Ph represents a benzene ring, R 1, R 3 and R 5 are independently C 1 -C 18 alkyl or C 4 -C 18 heterocyclic alkyl; R 2, R 4 and R 6 are independently C 1 -C 18 alkyl or C 4 -C 18 heteroalkyl, and i, j, m, n, o and p are independently 0, 1 or 2, to form a petroleum hydrocarbon or liquid biological A method of marking a derived fuel. Formula C {Ph (R 1) i (OR 2) j} 2 {Ph (R 3) m (OR 4) n} {Ph (R 5) o (OR 6) p} respectively, of a compound having the 0.01 ppm ≪ / RTI > to 20 ppm. |