Trienes- Organic compound containing 3 separate carbon to carbon double bonds C=C
The rule for naming is they all end with "-triene".
The general formula is CnH2n-4, n is the number of carbons is used to determine the number of hydrogen atoms. Example n=6, so H=(2(6)-4)=8
Naming Compounds- Again, ignore all the hydrogen's. We only worry about carbon atoms.
Rule #1-Name the longest chain that contains both double bonds. End it with "triene".
Rule #2-When necessary use the lowest numbers to give the locations of both double bonds.