CH3CH2CH2O

CH3CH2CH2O, also known as propanal or n-propanal, is a straight-chain aldehyde with the chemical formula C3H6O. It is a colorless liquid with a pungent, fruity odor, similar to that of other aldehydes. Propanal is a common intermediate in the synthesis of various chemicals and is used in the production of fragrances, flavors, and pharmaceuticals.

The molecule consists of a propyl group (CH3CH2CH2-) attached to a carbonyl group (C=O). The carbonyl group is highly reactive and is responsible for the characteristic properties of aldehydes, such as their ability to form hydrates and participate in aldol condensations. Propanal can be prepared through the oxidation of propanol or by the hydration of propene.

In biological systems, propanal is not naturally occurring. However, it has been studied for its potential use as a cancer treatment due to its ability to inhibit the growth of cancer cells. Propanal is also used in the synthesis of various natural products, such as fragrances and flavors.

Propanal is classified as a volatile organic compound (VOC) and is subject to regulations regarding its emission into the atmosphere to prevent air pollution. It is also a potential health hazard, and exposure should be minimized. Proper handling and storage procedures should be followed to ensure safety.