NHU prepares acrolein through gas-phase oxidation of propylene and provides the product to both its in-house methionine product line and as part of the comprehensive material solutions for downstream plant protection customers. It is widely used in the production of pesticides and insecticides such as imidacloprid, fungicide such as glutaraldehyde, fragrance such as ligustral, and new material such as 3-cyclohexene-1-carboxaldehyde.