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CN 2934

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

94 lines EU TARIC, EU Combined Nomenclature (CN) & TARIC – extraction 01-10-2026

CodeDescriptionUnitThird-country dutySource
2934 10Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structureTARIC
2934 10 00 10Hexythiazox (ISO) (CAS RN 78587-05-0)6.5%TARIC
2934 10 00 202-(4-Methylthiazol-5-yl)ethanol (CAS RN 137-00-8)6.5%TARIC
2934 10 00 35(2-Isopropylthiazol-4-yl)-N-methylmethanamine dihydrochloride (CAS RN 1185167-55-8)6.5%TARIC
2934 10 00 452-Cyanimino-1,3-thiazolidine (CAS RN 26364-65-8)6.5%TARIC
2934 10 00 60Fosthiazate (ISO) (CAS RN 98886-44-3)6.5%TARIC
2934 10 00 90Other0%TARIC
2934 20Compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fusedTARIC
2934 20 20 00Di(benzothiazol-2-yl)disulphide; benzothiazole-2-thiol (mercaptobenzothiazole) and its salts6.5%TARIC
2934 20 80OtherTARIC
2934 20 80 15Benthiavalicarb-isopropyl (ISO) (CAS RN 177406-68-7)6.5%TARIC
2934 20 80 251,2-Benzisothiazol-3(2H)-one (CAS RN 2634-33-5) in the form of a powder with a purity by weight of 95 % or more, or in an aqueous mixture containing by weight 20 % or more of 1,2-benzisothiazol-3(2H)-one6.5%TARIC
2934 20 80 353-Methyl-1,2-benzothiazole-1,1-dioxide (CAS RN 34989-82-7) with a purity by weight of 95 % or more6.5%TARIC
2934 20 80 70N,N-Bis(1,3-benzothiazol-2-ylsulphanyl)-2-methylpropan-2-amine (CAS RN 3741-80-8)6.5%TARIC
2934 20 80 90Other0%TARIC
2934 30Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fusedTARIC
2934 30 10 00Thiethylperazine (INN); thioridazine (INN) and its salts0%TARIC
2934 30 90OtherTARIC
2934 30 90 102-Methylthiophenothiazine (CAS RN 7643-08-5)6.5%TARIC
2934 30 90 90Other0%TARIC
Other
2934 91 00 00Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam (INN), pemoline (INN), phendimetrazine (INN), phenmetrazine (INN) and sufentanil (INN); salts thereof0%TARIC
2934 92 00 00Other fentanyls and their derivatives0%TARIC
2934 99OtherTARIC
2934 99 60 00Chlorprothixene (INN); thenalidine (INN) and its tartrates and maleates; furazolidone (INN); 7-aminocephalosporanic acid; salts and esters of (6R,7R)-3-acetoxymethyl-7-[(R)-2-formyloxy-2-phenylacetamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; 1-[2-(1,3-dioxan-2-yl)ethyl]-2-methylpyridinium bromide0%TARIC
2934 99 90OtherTARIC
2934 99 90 04Silthiofam (ISO) (CAS RN 175217-20-6) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 05(S)-2-Methyl-1-(6-nitropyridin-3-yl)-4-(oxetan-3-yl)piperazine (CAS RN 1895867-67-0) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 06Cis-[2-(2,4-Dichlorodiphenyl)-2-(1H-imidazol-1-ylmethyl)-1,3-dioxolan-4yl]methyl-4-methylbenzenesulfonate (CAS RN 134071-44-6) with a purity by weight of 99 % or more6.5%TARIC
2934 99 90 07Cedazuridine (INN) (CAS RN 1141397-80-9) with a purity by weight of 99 % or more6.5%TARIC
2934 99 90 08(R)-tert-butyl 2-(6-(5-chloro-2-((tetrahydro-2H-pyran-4-yl)amino)pyrimidin-4-yl)-1-oxoisoindolin-2-yl)propanoate (CAS RN 2095665-45-3) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 093-[2-{(2R,3S)-3-[(1R)-1-{[tert-butyl(dimethyl)silyl]oxy}ethyl]-4-oxoazetidin-2-yl}propanoyl]-4,4-dimethyl-1,3-oxazolidin-2-one (isomeric mixture of CAS RNs 114341-89-8 and 114418-63-2) with a purity by weight of 99 % or more6.5%TARIC
2934 99 90 10Fluralaner (INN) (CAS RN 864731-61-3)6.5%TARIC
2934 99 90 11Aqueous solution of d(P-thio)(T-G-A-C-T-G-T-G-A-A-C-G-T-T-C-G-A-G-A-T-G-A) deoxyribonucleic acid (CAS RN 937402-51-2), containing by weight 15 % or more, but not more than 25 % of oligodeoxynucleotide6.5%TARIC
2934 99 90 12Dimethomorph (ISO) (CAS RN 110488-70-5)6.5%TARIC
2934 99 90 13(6S)-6-methyl-5,6-Dihydro-4H-thieno[2,3-b]thiopyran4-one-7,7-dioxide (CAS RN 148719-91-9) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 142-Mercaptoadenosine (CAS RN 43157-50-2) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 16Difenoconazole (ISO) (CAS RN 119446-68-3)6.5%TARIC
2934 99 90 17(S)-4-(tert-butoxycarbonyl)-1,4-oxazepane-2-carboxylic acid (CAS RN 1273567-44-4) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 18Methyl (1R,3R)-1-(1,3-benzodioxol-5-yl)-2-(2-chloroacetyl)-1,3,4,9-tetrahydropyrido[5,4-b]indole-3-carboxylate (CAS RN 171489-59-1) with a purity by weight of 99 % or more6.5%TARIC
2934 99 90 19(4R,6S)-6-Methyl-7,7-dioxo-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-ol (CAS RN 147128-77-6) with a purity by weight of 94 % or more6.5%TARIC
2934 99 90 20Thiophene (CAS RN 110-02-1)6.5%TARIC
2934 99 90 21Acesulfame potassium (potassium salt of 6-methyl-1,2,3-oxathiazin-4(3H)-one 2,2-dioxide; CAS RN 55589-62-3) ace-K0%TARIC
2934 99 90 224-(Oxiran-2-ylmethoxy)-9H-carbazole (CAS RN 51997-51-4) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 24Flufenacet (ISO) (CAS RN 142459-58-3) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 264-Methylmorpholine 4-oxide in an aqueous solution (CAS RN 7529-22-8)6.5%TARIC
2934 99 90 272-(4-Hydroxyphenyl)-1-benzothiophene-6-ol (CAS RN 63676-22-2)6.5%TARIC
2934 99 90 2811-(Piperazin-1-yl)dibenzo[b,f][1,4]thiazepine dihydrochloride (CAS RN 111974-74-4)6.5%TARIC
2934 99 90 30Dibenzo[b,f][1,4]thiazepin-11(10H)-one (CAS RN 3159-07-7)6.5%TARIC
2934 99 90 31Thenoic acid (CAS RN 1918-77-0) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 32(6R,7R)-Benzhydryl 3-hydroxy-8-oxo-7-(2-phenylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate (CAS RN 54639-48-4) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 34Benzyl 4-(oxetan-3-yl)piperazine-1-carboxylate (CAS RN 1254115-22-4) with a purity by weight of 99 % or more6.5%TARIC
2934 99 90 35Nusinersen sodium (INNM) (CAS RN 1258984-36-9) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 36Nadide phosphate (INNM) disodium salt (CAS RN 24292-60-2) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 374-Propan-2-ylmorpholine (CAS RN 1004-14-4)6.5%TARIC
2934 99 90 382-Chloro-9H-thioxanthen-9-one (CAS RN 86-39-5) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 394-(Oxiran-2-ylmethoxy)-9H-carbazole (CAS RN 51997-51-4)6.5%TARIC
2934 99 90 402,3-Pyrazinedicarboxylic anhydride (CAS RN 4744-50-7) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 4111-[4-(2-Chloro-ethyl)-1-piperazinyl]dibenzo(b,f)(1,4)thiazepine (CAS RN 352232-17-8)6.5%TARIC
2934 99 90 454-[4-[(5s)-5-(Aminomethyl)-2-oxo-3-oxazolidinyl] phenyl]-3-morpholinone, hydrochloride (CAS RN 898543-06-1) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 46(6R-trans)-7-Amino-8-oxo-3-[[(1,2,5,6-tetrahydro-2-methyl-5,6-dioxo-1,2,4-triazin-3-yl)thio]methyl]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (CAS RN 58909-56-1) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 472,4-Diethyl-9H-thioxanthen-9-one (CAS RN 82799-44-8) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 48Propan-2-ol -- 2-methyl-4-(4-methylpiperazin-1-yl)-10H-thieno[2,3-b][1,5]benzodiazepine (1:2) dihydrate, (CAS RN 864743-41-9)6.5%TARIC
2934 99 90 49Cytidine 5'-(disodium phosphate) (CAS RN 6757-06-8)6.5%TARIC
2934 99 90 50Vutrisiran (INN) (CAS RN 1867157-35-4) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 51Uridine 5'-triphosphate trisodium salt (CAS RN 19817-92-6) with a dry weight purity of 90 % or more6.5%TARIC
2934 99 90 55Uridine (CAS RN 58-96-8) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 561-[5-(2,6-Difluorophenyl)-4,5-dihydro-1,2-oxazol-3-yl]ethanone (CAS RN 1173693-36-1)6.5%TARIC
2934 99 90 57Dimethenamide-P (ISO) (CAS RN 163515-14-8) with a purity by weight of 93 % or more6.5%TARIC
2934 99 90 59Dolutegravir (INN) (CAS RN 1051375-16-6) or dolutegravir sodium (CAS RN 1051375-19-9)6.5%TARIC
2934 99 90 60DL-Homocysteine thiolactone hydrochloride (CAS RN 6038-19-3)6.5%TARIC
2934 99 90 615-(1,2-dithiolan-3-yl)valeric acid (CAS RN 1077-28-7)6.5%TARIC
2934 99 90 63(2b,3a,5a,16b,17b)-2-(morpholin-4-yl)-16-(pyrrolidin-1-yl)androstane-3,17-diol (CAS RN 119302-20-4)6.5%TARIC
2934 99 90 642-Bromo-5-benzoylthiophene (CAS RN 31161-46-3)6.5%TARIC
2934 99 90 65Benzo[b]thiophen-10-methoxycycloheptanone (CAS RN 59743-84-9) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 66Tetrahydrothiophene-1,1-dioxide (CAS RN 126-33-0)6.5%TARIC
2934 99 90 675-Chlorothiophene-2-carboxylic acid (CAS RN 24065-33-6)6.5%TARIC
2934 99 90 693-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]oxazol-2(3H)-one (CAS RN 1220696-32-1) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 701,3,4-thiadiazolidine-2,5-dithione (CAS RN 1072-71-5) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 713,4-Dichloro-1,2,5-thiadiazole (CAS RN 5728-20-1) with a purity by weight of 99 % or more6.5%TARIC
2934 99 90 722-Trifluoromethyl-9-allyl-9-thioxanthen-ol (CAS RN 850808-70-7) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 742-Isopropylthioxanthone (CAS RN 5495-84-1)6.5%TARIC
2934 99 90 75(4R-cis)-1,1-Dimethylethyl-6-[2[2-(4-fluorophenyl)-5-(1-isopropyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxane-4-acetate (CAS RN 125971-95-1)6.5%TARIC
2934 99 90 76Nedosiran sodium (INNM) (CAS RN 2247026-22-6) with a purity by weight of 95 % or more6.5%TARIC
2934 99 90 77Tazemetostat (INN) (CAS 1403254-99-8) with a purity by weight of 99 % or more and its salts6.5%TARIC
2934 99 90 78Disodium uridine-5'-monophosphate (CAS RN 3387-36-8) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 811-(4-aminophenyl)-5-(morpholin-4-yl)-2,3-dihydropyridin-6-one (CAS RN 1267610-26-3) with a purity by weight of 98 % or more6.5%TARIC
2934 99 90 82Rel-(3aR,12bR)-11-Chloro-2,3,3a,12b-tetrahydro-2-methyl-1H-dibenz[2,3:6,7]oxepino[4,5-c]pyrrol-1-one (CAS RN 129385-59-7) with a purity by weight of 97 % or more6.5%TARIC
2934 99 90 83Flumioxazin (ISO) (CAS RN 103361-09-7) of a purity by weight of 96 % or more6.5%TARIC
2934 99 90 85Gilteritinib (INN) (CAS 1254053-43-4) with a purity by weight of 98 % or more and its salts6.5%TARIC
2934 99 90 86Dithianon (ISO) (CAS RN 3347-22-6)6.5%TARIC
2934 99 90 872,2'-(1,4-Phenylene)bis(4H-3,1-benzoxazin-4-one) (CAS RN 18600-59-4)6.5%TARIC
2934 99 90 88(7S,9aS)-7-((benzyloxy)methyl)octahydropyrazino[2,1-c][1,4]oxazine dioxalate (CAS RN 1268364-46-0)6.5%TARIC
2934 99 90 896R-[6α,7β(Z)]]-7-[2-Furyl(methoxyimino)acetamido]-3-(hydroxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid (CAS RN 56271-94-4) with a purity by weight of 96 % or more6.5%TARIC
2934 99 90 90Other0%TARIC

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Source: European Commission (DG TAXUD), TARIC and Combined Nomenclature data as extracted on 1 October 2026. Heading 2934 in the TARIC consultation

Only the third-country duty is shown. Not shown: tariff preferences, quotas, suspensions, anti-dumping and other additional duties, import controls and the legal notes. The TARIC consultation lists the measures of each code.

This page is general information, not legal advice and not a classification decision. Tariff texts and rates change: check the publisher's current schedule, and ask the customs authority for a binding ruling where the answer matters.

All headings of chapter 29: ORGANIC CHEMICALS