BENZALDEHYDE LR. Benzaldehyde is an organic compound consisting of a benzene ring with a formyl substituent. It is the simplest aromatic aldehyde and one of.

Benzaldehyde (C₆H₅CHO), the simplest representative of the aromatic aldehydes, occurring naturally as the glycoside amygdalin. Prepared synthetically, it is used chiefly in the manufacture of dyes, cinnamic acid, and other organic compounds, and to some extent in perfumes and flavouring agents.

Benzaldehyde undergoes disproportionation upon treatment with concentrated alkali  one molecule of the aldehyde is reduced to the benzyl alcohol and another molecule is simultaneously oxidized to benzoic acid Benzaldehyde undergoes disproportionation upon treatment with concentrated alkali  one molecule of the aldehyde is reduced to the benzyl alcohol and another molecule is simultaneously oxidized to benzoic acid. 

The azlactone of α-acetaminocinnamic acid may also be prepared by substituting the equivalent amount of glycine for acetylglycine and increasing the amount of acetic anhydride to three molecular proportions, but the yield is only about 45–50 per cent of the theoretical amount.

BENZALDEHYDE LR, BENZALDEHYDE