Isobutyraldehyde, also known as 3-methylbutyraldehyde, is an organic compound. It has the molecular formula C4H8O and the structural formula CH3CH2CH(CH3)CHO. isobutyraldehyde is a colorless liquid with an irritating odor.

Isobutyraldehyde is mainly used as a solvent and intermediate. As a solvent, it is used in the chemical industry to dissolve resins, rubbers, paints and dyes. As an intermediate, it can be involved in the synthesis of a wide range of organic compounds, such as the synthesis of oxo ketones, acids and esters.

Isobutyraldehyde is also used in the synthesis of flavors and monosodium glutamate (MSG), which give foods and beverages their distinctive taste. It is also an important reagent for chemical reactions and has a wide range of applications in organic synthesis, such as for the preparation of heterocyclic compounds, oxidation reactions and reduction reactions.

It should be noted that Isobutyraldehyde has a certain degree of toxicity and volatility, and should be used and stored under appropriate conditions to prevent harm to humans and the environment.

Basic information

Nature:

Colorless transparent liquid. Has a pungent odor. It is gradually oxidized to isobutyric acid in the air.

Slightly soluble in water, miscible with ethanol, benzene, chloroform, ether, toluene, acetone and carbon disulfide. The solubility in water at 20°C is 11G/100ml. Relative density (d204) 0.7938. 

Melting point -65.9 ℃. Boiling point 64 ℃. Refractive index (n20D) 1.373. Flash point -6.7 ℃ (open cup).

Flammable. Low toxicity, median lethal dose (rat, oral) 2810mG/kG.

The main purpose

Isobutyraldehyde is not as widely used as n-butyraldehyde. Industrially, it is mainly hydrogenated to produce isobutanol. Isobutanol can be used as a substitute for n-butanol in some respects. The addition reaction of isobutyraldehydeandformaldehydeproduceshydroxytrimethylacetaldehyde, which is then hydrogenated to form neopentyl glycol, which is used as the raw material of varnish, resin, fiber and lubricant; the fertilizer prepared by the reaction of isobutyraldehyde and urea can Slow release of nitrogen; in addition, it is also used as an intermediate for amino acids, vitamins and other drugs. The oxo synthesis method simultaneously obtains n-butyraldehyde and isobutyraldehyde in proportion, and the consumption balance is still that the supply of isobutyraldehyde exceeds the demand, and a very large amount of isobutyraldehyde is used as fuel. 

Use

Used to synthesize cellulose esters, flavors, spices, etc., commonly used in baked goods, meat products, and icing.

Used in the manufacture of rubber vulcanization accelerators, antioxidants, isobutyric acid, etc.