2901Acyclic hydrocarbons:
2902Cyclic hydrocarbons:
2903Halogenated derivatives of hydrocarbons:
2904Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated:
2905Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:
2906Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives:
2907Phenols; phenol-alcohols:
2908Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols:
2909Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives
2910Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives:
2911Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated or nitrosated derivatives:
2912Aldehydes, whether or not with other oxygen function;cyclic polymers of aldehydes; paraformaldehyde:
2913Halogenated, sulfonated, nitrated or nitrosated derivatives of products of heading 2912:
2914Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated, or nitrosated derivatives:
2915Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:
2916Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:
2917Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:
2918Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives:
2919Phosphoric esters and their salts, including lactophosphates;their halogenated, sulfonated, nitrated or nitrosated derivatives:
2920Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives:
2921Amine-function compounds
2922Oxygen-function amino-compounds:
2923Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined:
2924Carboxyamide-function compounds; amide-function compounds of carbonic acid:
2925Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds:
2926Nitrile-function compounds:
2927Diazo-, azo- or azoxy-compounds:
2928Organic derivatives of hydrazine or of hydroxylamine:
2929Compounds with other nitrogen function:
2930Organo-sulfur compounds:
2931Other organo-inorganic compounds:
2932Heterocyclic compounds with oxygen hetero-atom(s) only:
2933Heterocyclic compounds with nitrogen hetero-atom(s) only:
2934Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds:
2935Sulfonamides:
2936Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent:
2937Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones:
2938Glycosides, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:
2939Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives:
2940Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers, sugar acetals and sugar esters, and their salts, other than products of heading 2937, 2938 or 2939:
2941Antibiotics:
2942Other organic compounds:


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