29: organic chemicals.

2901: Acyclic hydrocarbons 2902: Cyclic hydrocarbons 2903: Halogenated derivatives of hydrocarbons 2904: Derivative of hydrocarbon, sulphonatd, nitrated/nitrosatd w/n halogen 2905: Acyclic alcohols & their halogenatd, sulphonatd, nitrated/nitrosatd d 2906: Cyclic alcohols & their halogenated, sulphonated, nitrated/nitrosatd 2907: Phenols; phenol-alcohols 2908: Deriv of phenols/phenol-alc, halogenatd, sulphonatd, nitrated/nitrosa 2909: Ether, ether-alc... nes & their halogenatd, sulphonatd, nitratd... de 2910: Epoxides, epoxyalcohols, epoxyphenols & epoxyethers & their derivativ 2911: Acetals & hemiacetals & their derivs 2912: Aldehyde; cyclic polymer of aldehyde; paraformaldehyde 2913: Derivatives of aldehydes, of cyclic poly of aldehydes & paraformaldeh 2914: Ketones & quinones, w/n w o oxygen func, & their derivatives 2915: Saturated acyclic monocarboxylic acids & their derivatives 2916: Unsaturatd acycl monocarboxylc aci, cyclic monocarboxylic aci & deriv 2917: Polycarboxylic aci, their anhydrides, halides etc & their derivatives 2918: Carboxylic acids w additional oxygen func and their derivatives 2919: Phosphoric esters, their salts and their derivatives 2920: Esters of inorganic acids nes, their salts and their derivatives 2921: Amine-function compounds 2922: oxygen-function amino-compounds 2923: Quaternary ammon sa & hydroxides; lecithins & other phosphoaminolipid 2924: Carboxyamid-functn compound; amide function compound of carbonic acid 2925: Carboxyimide-func compds (incl saccharin & its sa) & imine-function c 2926: Nitrile-function compounds 2927: Diazo-, azoor azoxy-compounds 2928: organic derivatives of hydrazine or of hydroxylamine 2929: Compounds with other nitrogen function 2930: organo-sulphur compounds 2931: organo-inorganic compounds, nes 2932: Heterocyclic compounds with oxygen hetero-atom(s) only 2933: Heterocyclc compd with nitrogen hetero atom(s) only; nucleic acids & 2934: Heterocyclic compounds, nes 2935: Sulphonamides 2936: Provitamins & vitamins, natural/reproduced by synthesis/their derivs 2937: Hormones; their deriv; steroids nes, used primarily as hormones 2938: Glycosides & their salts, ethers, esters & other derivatives 2939: Vegetable alkaloids & their salts, ethers, esters & other derivatives 2940: Sugars, chemically pure, their ethers, esters and their salts 2941: Antibiotics 2942: organic compounds, nes 29: organic chemicals.