Marker compounds for liquid hydrocarbons and other fuels and oils
View Patent ↗A compound having formula (I) wherein G represents at least one substituent selected from the group consisting of C 1 -C 12 alkyl and C 1 -C 12 alkoxy.
1. A compound having formula (I)
wherein G consists of at least one substituent selected from the group consisting of C 1 -C 12 alkyl and C 1 -C 12 alkoxy.
2. The compound of claim 1 in which G consists of at least one substituent selected from the group consisting of C 1 -C 6 alkyl.
3. The compound of claim 2 in which G consists of two or three substituents selected from the group consisting of C 1 -C 6 alkyl.
4. The compound of claim 3 in which G consists of two or three substituents selected from the group consisting of C 1 -C 4 alkyl.
5. The compound of claim 4 in which G consists of two or three methyl groups or two or three ethyl groups.
6. A method for marking a petroleum hydrocarbon, biodiesel fuel or ethanol fuel; said method comprising adding to said petroleum hydrocarbon, biodiesel fuel or ethanol fuel at least one compound having formula (I)
wherein G consists of at least one substituent selected from the group consisting of C 1 -C 12 alkyl and C 1 -C 12 alkoxy.
7. The method of claim 6 in which each compound of formula (I) is present at a level from 0.05 ppm to 20 ppm.
8. The method of claim 7 in which G consists of two or three substituents selected from the group consisting of C 1 -C 6 alkyl.
9. The method of claim 8 in which G consists of two or three substituents selected from the group consisting of C 1 -C 4 alkyl.
10. The method of claim 9 in which G consists of two or three methyl groups or two or three ethyl groups.