2933 39 — Heterocyclic compounds with nitrogen hetero-atom[s] only, containing an unfused pyridine ring, whether or not hydrogenated, in the structure (excl. pyridine, piperidine, alfentanil "INN", anileridine "INN", bezitramide "INN", bromazepam "INN", difenoxin "INN", diphenoxylate "INN", dipipanone "INN", fentanyl "INN", ketobemidone "INN", methylphenidate "INN", pentazocine "INN", pethidine "INN", pethidine "INN" intermediate A, phencyclidine "INN" "PCP", phenoperidine "INN", pipradol "INN", piritramide "INN", propiram "INN", trimeperidine "INN", and salts thereof, and inorganic or organic compounds of mercury)

2933 Heterocyclic compounds containing only heteroatom(s) of nitrogen (+): - Compounds containing a non-condensed pyrazole ring in the structure (hydrogenated or non-hydrogenated): 2933 11 - phenazone (antipyrine) and its derivatives 2933 19 - other - compounds containing a non-condensed imidazole ring (hydrogenated or non-hydrogenated): 2933 21 - hydantoin and its derivatives 2933 29 - other - compounds containing non-condensed ring (unhydrogenated)

87 2933 31 – – pyridine and its salts 2933 32 – – piperidine and its salts 2933 33 – – alfentanil (INN), anileridine (INN), bezitramide (INN), bromazepam (INN), difenoxin (INN), diphenoxylate (INN), dipipanone (INN), fentanyl (INN), ketobemidone (INN), methylphenidate (INN), pentazocine (INN), pethidine (INN), pethidine (INN) intermediate A, phencyclidine (INN) (PCP), phenoperidine (INN), pipradrol (INN), piritramide (INN), propiram (INN) and trimeperidine (INN); salts thereof 2933 39 – – other – compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: 2933 41 – – levorphanol (INN) and its salts 2933 49 – – other – compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure: 2933 52 – – malonylurea (barbituric acid) and its salts 2933 53 – – allobarbital (INN), amobarbital (INN), barbital (INN), butalbital (INN), butobarbital, cyclobarbital (INN), methylphenobarbital (INN), pentobarbital (INN), phenobarbital (INN), secbutabarbital (INN), secobarbital (INN) and vinylbital (INN); salts thereof 2933 54 – – other derivatives of malonylurea (barbituric acid); salts thereof 2933 55 – – loprazolam (INN), mecloqualone (INN), methaqualone (INN) and zipeprol (INN); salts thereof 2933 59 – – other – compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: 2933 61 – – melamine 2933 69 – – other – lactams: 2933 71 – – 6-hexanelactam (ε-caprolactam) 2933 72 – – clobazam (INN) and methyprylon (INN) 2933 79 – – other lactams – other: 2933 91 – – alprazolam (INN), camazepam (INN), chlordiazepoxide (INN), clonazepam (INN), clorazepate (INN), delorazepam (INN), diazepam (INN), estazolam (INN), ethyl loflazepate (INN), fludiazepam (INN), flunitrazepam (INN), flurazepam (INN), halazepam (INN), lorazepam (INN), lormetazepam (INN), mazindol (INN), medazepam (INN), midazolam (INN), nimetazepam (INN), nitrazepam (INN), nordazepam (INN), oxazepam (INN), pinazepam (INN), prazepam (INN), pyrovalerone (INN), temazepam (INN), tetrazepam (INN) and triazolam (INN); salts thereof 2933 92 – – azinphos-methyl (ISO) 2933 99 – – other

This heading covers the following heterocyclic compounds:

88(A) Compounds containing a non-condensed pyrazole ring (hydrogenated or non-hydrogenated) in the structure. These include, inter alia: (1) Phenazone (antipyrine, dimethylphenylpyrazolone) Crystalline powder or flakes. Colorless, odorless. It is used in medicine as an antipyretic and antineuralgic agent. (2) Aminophenazone (4-dimethylamino-2,3-dimethyl-1-phenyl-5-pyrazolone) (amidopyrine, dimethylaminoanalgesine) and its salts. Colorless leafy crystals. It has a stronger antipyretic and antineuralgic effect than analgesin. (3) 1-Phenyl-3-Pyrazolidone. Compounds containing a non-condensed imidasol ring (hydrogenated or non-hydrogenated) in the structure. These include, inter alia: (1) Hydantoin and its substituted derivatives (e.g., nitrogidantoin, methylgidantoin and phenylgidantoin). Receive condensation of glycolic acid with urea. (2) Lysidin. Hygroscopic white crystals; used in medicine as a solvent of uric acid. (B) Compounds containing a non-condensed pyridine ring (hydrogenated or non-hydrogenated) in the ure struct. These include, inter alia: (1) Pyridine. Contained in coal tar, in bone oil, etc. Colorless or light yellow liquid with a strong unpleasant odor. It is used in organic synthesis, in the rubber industry, in dyeing and printing of textile materials, as a denature additive for alcohol, in medicine, etc. For inclusion in this heading, pyridine must have a purity of 95 % or more by weight. Pyridine of lower purity is excluded (heading 2707). (2) Derivatives of pyridine include, inter alia: (a) methylpyridine (picolin), 5-ethyl-2-methylpyridine (5-ethyl-2-picolin), and 2-vinylpyridine. For inclusion in this heading, these derivatives must have a purity of 90 % or more by weight (in the case of methylpyridine, all methylpyridine isomers must be taken into account together). Derivatives of lower purity are excluded (heading 2707); (b) pyridine carboxylic acids. These compounds include pyridine-γ-carboxylic acid (isonicotinic acid). Colorless crystals formed by oxidation of γ-picolin or by synthesis. Its hydrazide is used to treat tuberculosis. Pyridine-β-carboxylic acid, known as nicotinic acid, is, however, excluded (heading 2936); (c) pyridine-β-carboxylic acid diethylamide, an oily liquid, almost colorless; used in medicine to stimulate circulation and respiration;

89(d) hexanicotinate mesoinosite. (3) Piperidine derivatives include: (a) 1-methyl-4-phenylpiperidine carboxylic acid; (b) ethyl ester 1-methyl-3-phenylpiperidine-3-carboxylic acid; (c) ethyl ester 1-methyl-4-phenylpiperidine-4-carboxylic acid (petidine); (d) ketobemidon (INN) (1-[4-m-hydroxyphenyl)-1-methyl-4-piperidine]propan-1-one). (D) Compounds containing a quinoline or isoquinoline ring system (hydrogenated or non-hydrogenated) without further condensation. Quinoline, isoquinoline and their derivatives, bicyclic systems containing a benzene ring condensed with a pyridine ring. Quinoline and isoquinoline are found in coal tar, but they can also be obtained by synthesis. Colorless liquids with a high refractive index, with a characteristic unpleasant and pungent smell. They are used in organic synthesis (for example, in the synthesis of dyes, drugs). Derivatives include, inter alia: (1) Methylquinoline. (2) Isobutyl quinoline. (3) Isopropylquinoline. (4) Tetrahydromethylquinoline. (5) 3-, 4-, 5-, 6-, 7- and 8-Hydroxyquinolines and their salts. It is obtained by introducing a hydroxyl group into one of the two rings of the quinoline molecule. This also includes complex compounds of 8-hydroxyquinoline with metals. (6) Phenylquinolinecarboxylic acid (phenylcynchonic acid). Colorless needle crystals or yellowish-white powder. A cure for gout and rheumatism. (7) Octaverine (INN) (6,7-dimethoxy-1-(3,4,5-triethoxyphenyl)isoquinoline). (8) N-Methylmorphinan. (9) 3-hydroxy-N-methylmorphinan. (E) Compounds containing a pyrimidine ring (hydrogenated or non-hydrogenated) or piperazine ring in the structure. These include, inter alia: (1) Malonylurea (barbituric acid) and its derivatives. This is a very important group of pyrimidine compounds. They form water-soluble sodium salts. Both alkyl-substituted derivatives of barbituric acid and their salts are used in medicine as hypnotics and sedatives. Compounds representing this group include barbital (INN) (diethylmalonylurea), phenobarbital (INN) (ethylphenyl malonylurea), amobarbital (INN) (ethylzoamylmalonylurea), secobarbital (INN) (allyl-1-methylmalonylurea) and cyclobarbital (INN) (5-cyclohex-1-enyl-5-ethylbarbituric acid).

90 (2) Sodium thiopenton (sodium pentiobarbital), cyclic thioureid. Yellowish-white water-soluble hygroscopic powder with an unpleasant odor. It is used in medicine as an anesthetic. (3) Piperazine (diethylenediamine). Crystalline white mass, hygroscopic, has a characteristic smell. It is used in medicine to treat gout. (4) 2.5-Dimethylpiperazine. Colorless oily liquid or paste, used as a solvent of uric acid. Compounds containing a non-condensed triazine ring (hydrogenated or non-hydrogenated) in the structure. These include, inter alia: (1) Melamine (triaminotriazine). Shiny white crystals used in the production of plastics. (2) Trimethylenetrinitramine (hexogen). Explosive, crystalline white powder sensitive to impact. (3) Cyanuric acid (enolic and ketone forms). (4) Methenamine (INN), its salts and derivatives. White crystals of the correct shape, well soluble in water. Used in medicine as a solvent of uric acid (uric antiseptic), in the production of synthetic resins, as an accelerator of vulcanization of rubber, as an antienzymatic agent, etc. This heading does not include lozenges and tablets of methenamine (INN) for medical use (heading 3004) and methenamine supplied in forms (e.g. tablets, sticks or similar forms) for use as fuel (heading 3606). Lactama. These compounds can be considered as internal amides, similar to lactones; they are obtained from amino acids by cleavage of water. The molecules may contain one or more amide functional groups in the ring. These are known as mono-, di-, trilactams, etc. according to the number of amide functional groups present. This heading also includes lactims which are zero tautomers of lactams (representing ketone isomers).

These include, inter alia: (1) 6-Hexanlactam (ε-caprolactam). White crystals; soluble in water; emits caustic smoke. It is used in the production of plastics and artificial fibers. (2) Isatine (lactam isatic acid). Shiny yellowish-brown crystals. It is used in the manufacture of paints and in medicine. (3) 2-Hydroxyquinoline (carbostyryl), lactam o-aminocoric acid. (4) 3,3-Di (p-acetoxyphenyl) oxindole (diacetyldioxydiphenylisatine). White crystal powder, not soluble in water. Used as a laxative. (5) 1-Vinyl-2-pyrrolidone. Yellow crystalline powder with a pleasant smell. It is used in the production of polyvinylpyrrolidone (included in group 39) and in medicine. (6) Primidone (INN) (5-ethyl-5-phenyl perhydropyrimidine-4,6-dione). White crystals; soluble in water.

91 (7) 1.5,9-Triazacyclododecane-2,6,10-trione. This heading excludes betaine (trimethylglycine, trimethylglycocol) and intramolecular quaternary ammonium salt (heading 2923). (Z) Other heterocyclic compounds containing only heteroatom(s) of nitrogen. These include, inter alia: (1) Carbazole and its derivatives. It was obtained by merging two benzene rings with a pyrrole core. Contained in heavy fractions of coal tar, but can also be obtained by synthesis. Brilliant crystal flakes used in the production of paints and plastics. (2) Acridine and its production are water. Acridine is obtained by condensing two benzene rings with a pyridine cycle. It is found in small amounts in coal tar, but can also be obtained by synthesis. It is used in the production of paints and certain medicines. This heading covers the following derivatives of acridine (other than those regarded as dyes): (a) proflavin (hydrogen sulfate 3.6-diaminoacridine), reddish-brown crystalline powder; (b) lactate 2.5-diamino-7-ethoxyacridine, yellow powder. Both of these derivatives have antiseptic and bactericidal properties. (3) Indole. It is contained in coal tar, but is usually obtained by synthesis. Small crystal plates, colorless or slightly yellowish, under the influence of light and air acquire a red color. In unpeeled form, it has a pronounced smell of feces, but after cleaning it has a strong floral smell. It is used in the manufacture of synthetic perfumes and in medicine. (4) β-methylindole (skatol) Crystallizes as colorless flakes; unpeeled has the smell of feces. (5) Mercaptobenziminazole. (6) Phthalhydrazide (phthalic acid hydrazide). (7) Ethyleneimine (aziridine) and its N-substituted derivatives. (8) Porphyrins (porphyrin derivatives). (9) Azinphosmethyl (ISO) (O,O-dimethyl S-[(4-oxo-1,2,3-benzotriazine-3(4H)-il)methyl]dithiophosphate) (C10H12N3O3PS2). However, porphyrin (alkaloid) is to be classified in heading 2939. Certain substances of this heading which are classified under international instruments as narcotic drugs or psychotropic substances are listed at the end of Chapter 29. This heading does not cover imides of polybasic acids. Explanation of subheadings. Subheadings 2933 11, 2933 21 and 2933 54 Phenazone (subheading 2933 11), hydantoin (subheading 2933 21) and barbituric acid (subheading 2933 52) are compounds characterized by a particular heterocyclic structure. Derivatives of these compounds included in the corresponding

92 subheadings shall also retain the basic structure of the parent compound. Thus, compared to the parent compound, these derivatives typically have: (a) unmodified functional groups (e.g., oxogroups); (b) the same number and arrangement of double bonds; (c) the same substituents (e.g., a phenyl group and two methyl groups for phenazone); and (d) in addition, only substituted hydrogen atoms (e.g., a hydrogen atom in a pyrimidine ring of barbituric acid is substituted with an alkyl group). However, salts derived from the enolic form of the parent compound should be considered derivatives of ketoforms. Subheading 2933 79 Lactams containing an additional heteroatom other than a nitrogen atom of the lactam group (e.g., dilactam) in the same ring shall not be included in the subheading to which lactams are included. In such cases, an additional heteroatom should be taken into account to determine the classification. For example, oxazepam (INN) is to be classified in subheading 2933 91 and not in subheading 2933 79. If the amide functional group is part of two or more rings and if one of these rings does not contain an additional heteroatom (other than a nitrogen atom of the lactam group), such a molecule shall be considered lactam. For inclusion in subheading 2933 79, lactams must have different lactam groups separated by at least one carbon atom at each end. However, this subheading does not include compounds in which carbon atoms separating and adjacent to lactam groups form an oxo group (> C=O), an imino group (> C=NH) or a thiox group (> C=S). For example, barbituric acid is not included in subheading 2933 79 (subheading 2933 52).

2934 Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: 2934 10 – compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure 2934 20 – compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused 2934 30 – compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused – other: 2934 91 – – aminorex (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 thereof 2934 99 – – other

This heading covers nucleic acids and salts thereof. These are complex compounds that, in combination with proteins, form nucleoproteins found in the nuclei of animal and plant cells. They are combinations of phosphoric acids with

93 sugar and pyrimidine or purine compounds. Usually white powders, soluble in water. The acids or, more often, their salts (sodium and copper nucleates) are used as tonics and stimulants for the nervous system and as solvents for uric acid. The heterocyclic compounds of this heading include: (A) Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure. The term "thiazole" covers both 1,3-thiazole and 1,2-thiazole (isothiazole). (B) Compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused. The term "benzothiazole" covers both 1,3-benzothiazole and 1,2-benzothiazole (benzisothiazole). These include, inter alia: (1) Mercaptobenzothiazole. Fine whitish-yellowish powder. Used as an accelerator in the rubber industry. (2) Dibenzothiazolyl disulphide. Used as an accelerator in the rubber industry. (3) Ipsapirone (INN) (2-[4-(4-pyrimidin-2-ylpiperazin-1-yl)butyl]-1,2-benzothiazol-3(2H)-one 1,1-dioxide). Used as an agent relieving anxiety and restlessness. (4) Dehydrothio-p-toluidine (4-(6-methyl-1,3-benzothiazol-2-yl)aniline). (C) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused. These include, inter alia: Phenothiazine (thiodiphenylamine). Shiny yellowish flakes or greyish-green powder; used in the manufacture of dyes, etc. (D) Other heterocyclic compounds. These include, inter alia: (1) Sultones. These may be regarded as internal esters of hydroxysulphonic acids. They include the sulphophthaleins, e.g.: (a) phenol red (phenolsulphonphthalein). Used in medicine and as an indicator in analysis; (b) thymol blue (thymolsulphonphthalein). Used as a reagent; (c) 1,3-propanesultone. (2) Sultams. These may be regarded as internal amides of aminosulphonic acids. They include naphthosultam-2,4-disulphonic acid, obtained from peri acid and used in the manufacture of CC acid (8-amino-1-naphthol-5,7-disulphonic acid or 1-amino-8-naphthol-2,4-disulphonic acid). (3) Thiophene. Found in coal tar and in lignite tar. It may also be obtained by synthesis. Mobile colourless liquid with an odour similar to that of benzene.

94 (4) Furazolidone (INN) (3-(5-nitrofurilidenamino)oxazolidine-2-one). (5) Adenosine-tri-or pyrophosphoric acid. (6) 3-Methyl-6,7-methylenedioxy-1-(3,4-methylenedioxybenzyl)isoquinoline hydrochloride. (7) 3-Methyl-6,7-methylenedioxy-1-(3,4-methylenedioxyphenyl)isoquinoline. This heading does not include mercury nucleides as described in heading 2852 and cyclic thioaldehyde polymers (heading 2930). Certain substances of this heading which are classified under international instruments as narcotic drugs or psychotropic substances are listed at the end of Chapter 29.

Notes

Machine translation. The original is the Russian text of the EAEU tariff, and customs goes by it; this translation is for understanding only and has no legal force.

1. Unless otherwise specified in the context, the headings of this chapter include only:

(a) individual organic compounds of a particular chemical composition, whether or not containing impurities;

(b) mixtures of two or more isomers of the same organic compound (containing or not containing impurities), except for mixtures of isomers of acyclic hydrocarbons (but not stereoisomers), saturated or unsaturated (Chapter 27);

(c) products of headings 2936 to 2939 or simple esters of sugars, acetals of sugars, esters of sugars and their salts, of heading 2940, or products of heading 2941, whether chemically defined or indefinite;

(d) products referred to in points (a), (b) or (c) above dissolved in water;

(e) products referred to in points (a), (b) or (c) above dissolved in other solvents, provided that dissolution is the usual and necessary method used solely for the preservation or transportation of these products, and that the solvent does not render the product suitable for a specific application other than conventional use;

(f) products referred to in points (a), (b), (c), (d) or (e) above, with the addition of a stabilizing substance (including an anti-traceability agent) necessary for their preservation or transport;

(g) products referred to in points (a), (b), (c), (d), (e) or (f) above, with the addition of an anti-dust agent or a coloring or fragrant substance or emetic to facilitate their identification or for safety purposes, provided that these additives do not make the product suitable for a specific use other than traditional use;

(h) the following products diluted to a standard concentration for the production of azo dyes: diazonium salts, substances reacting with these salts, diazotizing amines and their salts.

2. This group does not include:

(a) the goods of heading 1504 or of raw glycerol of heading 1520;

(b) ethyl alcohol (heading 2207 or 2208);

(c) methane or propane (heading 2711);

(d) the carbon compounds referred to in Note 2 to Chapter 28;

(e) immunological products of heading 3002;

(f) urea (heading 3102 or 3105);

(g) dyes of vegetable or animal origin (heading 3203), synthetic organic dyes, synthetic organic products used as optical bleaches or phosphors (heading 3204), or dyes or other dyes packaged in molds or packages for retail sale (heading 3212);

(h) enzymes (heading 3507);

(ij) metaldehyde, hexamethylenetetramine or similar substances, packaged in moulds (e.g. tablets, sticks or similar forms) intended for use as fuel, or liquid or liquefied gaseous fuel in containers of not more than 300 cm in capacity, used for filling or refilling cigarette or similar lighters (heading 3606);

(k) products supplied as fire extinguishing charges or grenades for extinguishing fires of heading 3813; ink stain removal preparations packaged for retail sale of heading 3824; or

(l) optical elements, for example of ethylenediamintartrate (heading 9001).

3. Goods which may be included in two or more headings of this Chapter are classified in the heading, the latter in ascending order of the codes in this Chapter of the Nomenclature.

4. For the purposes of headings 2904 to 2906, 2908 to 2911 and 2913 to 2920, any reference to halogenated, sulfonated, nitrated or nitrosed derivatives also applies to mixed derivatives such as sulfohalogenated, nitrohalogenated, nitrosulfonated or nitrosulfohalogenated derivatives.

For the purposes of heading 2929, nitrogen or nitrozo groups are not regarded as nitrogen-containing functional groups.

For the purposes of headings 2911, 2912, 2914, 2918 and 2922, the term “oxygen-containing functional group” means that the characteristic organic oxygen-containing groups of these headings are limited to the oxygen-containing functional groups referred to in headings 2905 to 2920.

5. (A) Esters of organic compounds with acidic functional groups of subgroups I to VII with organic compounds of the same subgroups shall be included with that of them which falls in the heading last in ascending order of codes in these subgroups of the Nomenclature.

(B) Ethyl alcohol esters with organic compounds with acid functional groups of subgroups I to VII are to be classified in the same headings as the corresponding organic compounds with acid functional groups.

(C) Subject to note 1 to section VI and note 2 to chapter 28:

(1) Inorganic salts of organic compounds, such as compounds with acidic, phenolic or enolic functional groups, or organic bases of subgroups I to X or heading 2942, are to be classified in the headings for organic compounds;

(2) salts resulting from chemical reactions between organic compounds of subgroups I to X or heading 2942 are to be classified in the heading for the base or acid (including compounds with phenolic or enolic functional groups) from which these salts are formed, the latter in ascending order of the codes in the group; and

(3) Coordinating or complex compounds, other than substances of sub-group XI or heading 2941, are classified in the heading last in ascending order of the codes of Chapter 29, among those suitable for fragments formed by the "splitting" of all metal bonds other than metal-carbon bonds.

(D) Metal alcohols are to be classified in the same heading as the alcohols concerned, with the exception of ethanol (heading 2905).

(E) Carboxylic acid halides are to be classified in the same heading as the corresponding acids.

6. The compounds of headings 2930 and 2931 are organic compounds whose molecules, in addition to hydrogen, oxygen or nitrogen atoms, contain atoms of other nonmetals or metals (such as sulfur, arsenic or lead) directly bound to carbon atoms.

Headings 2930 (organic sulphur compounds) and 2931 (other organo-inorganic compounds) do not include sulfonated or halogenated derivatives (including complex derivatives) which, in addition to hydrogen, oxygen and nitrogen, have only directly carbon-related sulphur or halogen atoms giving them the properties of sulfonated or halogenated derivatives (or complex derivatives).

7. Headings 2932 to 2934 do not include three-membered ring epoxides, ketone peroxides, cyclic polymers of aldehydes or thioaldehydes, anhydrides of polybasic carboxylic acids, cyclic esters of polyalcohols or phenols with polybasic acids or imides of polybasic acids.

These provisions are applicable only if heteroatom cycles are formed only as a result of the cyclization reaction or as a result of the reactions mentioned above.

8. In heading 2937:

(a) the term “hormones” covers release hormones or factors that stimulate hormone secretion, hormone inhibitors and hormone antagonists (antihormones);

(b) the term “mainly used as hormones” applies not only to hormone derivatives and their structural analogues used principally for hormonal action, but also to such derivatives and structural analogues as are used principally as intermediates in the synthesis of substances of this heading.

Subheading notes

English text as published in Annex I to Regulation (EU) 2021/1832 (Combined Nomenclature). The EAEU tariff and the EU nomenclature copy these notes from the same convention. For a Russian declaration the binding version is the Russian one: Annex to Decision No 80 of the EEC Council of 14 September 2021.

1. Within any one heading of this chapter, derivatives of a chemical compound (or group of chemical compounds) are to be classified in the same subheading as that compound (or group of compounds), provided that they are not more specifically covered by any other subheading and that there is no residual subheading named ‘Other’ in the series of subheadings concerned.

2. Note 3 to Chapter 29 does not apply to the subheadings of this chapter.

Additional notes of the Eurasian Economic Union

Machine translation. The original is the Russian text of the EAEU tariff, and customs goes by it; this translation is for understanding only and has no legal force.

1. Subheading 2901 10 000 1 covers ethane, butane and isobutane in the form of separate isomers of a purity of 95% or more. This percentage of compounds is calculated respectively by volume for gaseous products or by weight for liquefied products. Ethane, butane and isobutane having a lower degree of purity fall in heading 2711.

2. Subheading 2901 10 000 2 covers pentane and isopentane as separate isomers of a purity of 95 % or more by weight.