Question

which compound have bitter almond smell

Answer 1

The detective knows what many might find surprising — that the deadly poison cyanide is naturally present in bitter almonds and many other plants used as food, including apples, peaches, apricots, lima beans, barley, sorghum, flaxseed and bamboo shoots.

Answer 2

its benzaldehyeIt is the simplest aromatic aldehyde and one of the most industrially useful. It is a colorless liquid with a characteristic almond-like odor. Benzaldehyde is the primary component of bitter almond oil and can be extracted from a number of other natural sources.
hope it help...