What kind of wax is put on tomatos?

After a tomato is picked, what kind of wax do farmers put on them to keep them from spoiling?

The wax is made of toluene/hexane (2+1) eluted n-alkanes (C21–C35), iso- and anteiso-alkanes, n-alkadienes and -trienes (C33, C34 and C35) as well as some aldehydes. This wax is put on tomatoes to keep them from spoiling longer and is edible (even though the gibberish above does not make it look edible). Not many people know what the wax is called but it is commonly put on other vegetables and some fruits.
I don't know if that answered your question or not, but good luck finding it!