Explanatory notes
… atoms and, as a minimum, must contain a potential reducing carbonyl group (aldehydic or ketonic) and at least one … as well as their salts. Sugar acetals may be formed between any two hydroxy groups of the sugar, or at the anomeric … parts of products of headings 29.37, 29.38, 29.39 or any heading later than heading 29.40 are also excluded (see …