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Heading 2926 : Nitrile-function compounds.
The general formula of nitriles is RCºN in which R is an alkyl or aryl radical or sometimes nitrogen. Mono-, di-, or tri-nitriles contain one, two or three cyanogen radicals(-CN) per molecule, respectively.
The heading includes :(1) Acrylonitrile. Colourless mobile liquid.
Acrylonitrile polymers and co-polymers are excluded; they constitute plastics (Chapter 39) or synthetic rubber (Chapter 40). (2) 1-Cyanoguanidine (dicyandiamide). Pure white crystals. (3) Acetaldehyde cyanohydrin. (4) Acetonitrile. (5) Adiponitrile. (6) Aminophenylacetonitrile. (7) Benzonitrile. (8) Acetone cyanohydrin. (9) Cyanoacetamide. (10) Cyanopinacoline. (11) Hydroxyphenylacetonitrile. (12) Iminodiacetonitrile. (13) Nitrobenzonitrile. (14) Naphthonitrile. (15) Nitrophenylacetonitrile. (16) Phenylcyanamide. (17) Tricyanotrimethylamine. (18) Methadone-intermediate (INN) - see the list at the end of Chapter 29.
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