Benzoin is an organic compound with the formula PhCH(OH)C(O)Ph. It is a hydroxy ketone attached to two phenyl groups. It appears as off-white crystals, with a light camphor-like odor. Benzoin is synthesized from benzaldehyde in the benzoin condensation. It is chiral and it exists as a pair of enantiomers: (R)-benzoin and (S)-benzoin. Benzoin is not a constituent of benzoin resin obtained from the benzoin tree (Styrax) or tincture of benzoin. The main component in these natural products is benzoic acid.
α-Hydroxybenzyl phenyl ketone
Benzoin Zone Refined
Appearance & Physical State
light yellow powder or crystals with a camphor-like odour
194ºC (12 mmHg)
Stable. Combustible. Incompatible with strong oxidizing agents.