Jasmonic acid is derived from the fatty acid linolenic acid. It is a member of the jasmonate class of plant hormones.
The twin comforter was made for a twin bed which is 75 long with the idea that you get 10 extra length. If that is the perfect length for a standard twin bed, then for an 80. Twin XL bed you would want a comforter that is a true Twin XL which would be 90 long.
Here's how to make a twin XL bed with a standard twin comforter... pull the comforter toward the bottom of the bed to accommodate the 5 inch difference then turn down the top so the comforter does not appear short when the bed is made. You can then fill in the top with extra pillows.