Butyl butyrate, or butyl butanoate, is an organic compound which is an ester formed by the condensation of butyric acid and butanol. It is a clear, colorless liquid that is insoluble in water, but miscible with ethanol and diethyl ether.

Normal butyric acid or fermentation butyric acid is found in butter, as an hexyl ester in the oil of Heracleum giganteum (cow parsnip) and as an octyl ester in parsnip (Pastinaca sativa); it has also been noticed in the fluids of the flesh and in perspiration.

Clevidipine (INN, trade name Cleviprex) is a dihydropyridine calcium channel blocker indicated for the reduction of blood pressure when oral therapy is not feasible or not desirable.

Clobetasone (INN[1]) is a corticosteroid used in dermatology, for treating such skin inflammation as seen in eczema and other forms of dermatitis, and ophthalmology.

Ethyl butyrate, also known as ethyl butanoate, or butyric ether, is an ester with the chemical formula CH3CH2CH2COOCH2CH3, with one oxygen having a double bond.

Magnesium butyrate

Isoamyl n-butyrate.

C5H11COOC3H7 A water-white liquid boiling at 150-180°C; soluble in alcohol and ether; used as a solvent and plasticizer for cellulose acetate and in flavor extracts.