Explanatory notes
… with a strong, penetrating odour; many aromatic aldehydes readily oxidise on contact with air, being converted into … which contain also one or more of the oxygen functions referred to in previous sub‑Chapters (alcohol, phenol, … agents, plastics, etc.), as an antiseptic, deodorant and reducing agent. (2) Ethanal (acetaldehy de) (CH 3 CHO). …