Adead fish has washed up on the beach and is starting to decay. which compound produces the unpleasant odor from the decaying fish?

pentane-1,5-diamine
hexane-1,5-diamine
hexane-1,6-dithiol
2-pentanone

The correct answer is pentane-1,5-diamine

The distinctive smell of dead animals comes largely from molecules like cadaverine and putrescine that are made when proteins break down, but the decomposition of high-protein plants can make a deathly smell too. Cadaverine is a foul-smelling diamine compound produced by the putrefaction of animal tissue. Cadaverine is a toxic diamine with the formula NH2(CH2)5NH2, which is similar to putrescine. It is the chemical that comes from dead fish

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