The chemical compound benzaldehyde (C6H5CHO) consists of a benzene ring with an aldehyde group attached to one carbon. It is an important component of the scent of almonds and has a pleasant, almond-like odor. On oxidation, benzaldehyde is converted into benzoic acid, which has an odor quite unpleasant.

Molecular weight: 106.12
Melting point: -26 C
Boiling point: 179 C; auto-ignites at 192 C
Specific gravity: 1.044
Refractive index: 1.5450
Synonyms: Benzenecarboxaldehyde; Benzoic aldehyde; Artificial Almond Oil; Benzenecarbonal; Phenylmethanal