2901 - Acyclic hydrocarbons

2902 - Cyclic hydrocarbons

2903 - Halogenated derivatives of hydrocarbons

2904 - Sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated

2905 - Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives

2906 - Cyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives

2907 - Phenols; phenol-alcohols

2908 - Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols

2909 - Ethers, ether-alcohols, ether-phenols, ether-alcohol-phenols, alcohol peroxides, ether peroxides, ketone peroxides [whether or not chemically defined], and their halogenated, sulphonated, nitrated or nitrosated derivatives, acyclic ethers and their haloge

2910 - Epoxides, epoxyalcohols, epoxyphenols and expoxyethers, with a three-membered ring, and their halogenated, sulphonated, nitrated or nitrosated derivatives

2911 - Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives

2912 - Aldehydes, whether or not with other oxygen function; cyclic polymers ofaldehydes;para-formaldehyde

2913 - Halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912

2914 - Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives

2915 - Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

2916 - Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

2917 - Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

2918 - Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives

2919 - Phosphoric esters and their salts, including lacto-phosphates; their halogenated, sulphonated, nitrated or nitrosated derivatives

2920 - Esters of other inorganic acids of non-metals [excluding esters of hydrogen halides] and their salts; their halogenated, sulphonated, nitrated or nitrosated derivatives

2921 - Amine function compounds

2922 - Oxygen-function amino-compounds

2923 - Quaternary ammonium salts and hydroxide; lecithins and other phosphoamino-lipids, whether or not chemically defined?;

2924 - Carboxyamide-function compounds; amide-function compounds of carbonic acid

2925 - Carboxyimide-function compounds [including saccharin and its salts] and imine-function compounds

2926 - Nitrile-function compounds

2927 - Diazo-, azo- or azoxy- compounds

2928 - Organic derivatives of hydrazine or of hydroxylamine

2929 - Compounds with other nitrogen function

2930 - Organo-sulphur compounds

2931 - Other organo-inorganic compounds

2932 - Heterocyclic compounds with oxygen hetero-atom[s] only compounds containing an unfused furan ring [whether or not hydrogenated] in the structure:

2933 - Heterocyclic compounds with nitrogen hetero-atom[s] only

2934 - Nucleic acids and their salts;whether or not chemically defined; other heterocyclic compounds

2935 - Sulphonamides

2936 - Provitamins and vitamins, natural or reproducted by synthesis [including natural concentrates], derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent

2937 - Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones

2938 - Glycosides, natural or reproduced by synthesis and their salts, ethers, esters and other derivatives

2939 - Vegetable alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives

2941 - Antibiotics

2942 - Other organic compounds