MXIK (IKPU) codes, class 02933: Heterocyclic compounds with nitrogen hetero-atom(s) only
1 position · 21 subpositions · 21 codes · tasnif.soliq.uz, data as of 14.10.2026
Updated:
Class 02933 "Heterocyclic compounds with nitrogen hetero-atom(s) only" belongs to group 029 "Organic chemicals" of the MXIK (IKPU) classifier. It contains 1 position, 21 subpositions and 21 codes. That is 5% of all codes in the group.
All subpositions of the class sit in a single position, 02933001 "Heterocyclic compounds with nitrogen hetero-atom(s) only". Every subposition of the class holds exactly one code. Other examples: "Barbituric acid", "Light stabiliser", "Reference standard", "Norfloxacin reference standard".
By number of codes the class ranks 5th of 42 in the group. Neighbouring classes: 02932 "Heterocyclic compounds with oxygen hetero-atom(s) only" (11 codes) and 02934 "Nucleic acids and their salts; other heterocyclic compounds" (15 codes). Under the coding scheme in the Regulation on the National Catalogue, digits 2 to 5 of a goods code are the customs (TN VED, HS-based) code; for this class it is 2933.
Codes in this class
| Code | Name | Copy code |
|---|---|---|
| 02933001 | Heterocyclic compounds with nitrogen hetero-atom(s) only21 codes | |
| 02933001001 | Barbituric acid1 code | |
| 02933001003 | Murexide1 code | |
| 02933001004 | Urotropin (hexamine)1 code | |
| 02933001005 | o-Phenanthroline1 code | |
| 02933001006 | Pyridine1 code | |
| 02933001007 | Light stabiliser1 code | |
| 02933001008 | Indole-3-butyric acid1 code | |
| 02933001009 | Melamine1 code | |
| 02933001010 | Diazinon1 code | |
| 02933001011 | Drotaverine hydrochloride1 code | |
| 02933001016 | Reference standard1 code | |
| 02933001020 | Mebendazole reference standard1 code | |
| 02933001021 | Doxylamine succinate1 code | |
| 02933001022 | Allopurinol1 code | |
| 02933001023 | L-Histidine monohydrochloride monohydrate1 code | |
| 02933001024 | Norfloxacin reference standard1 code | |
| 02933001025 | Triglycidyl isocyanurate1 code | |
| 02933001026 | Ciprofloxacin pharmaceutical secondary standard1 code | |
| 02933001027 | Sitagliptin phosphate monohydrate1 code | |
| 02933001028 | Pyrantel pamoate1 code | |
| 02933001029 | Other heterocyclic compounds with nitrogen hetero-atom(s) only1 code |
How to apply an MXIK code
- Find the subposition of your good or service: the first 11 digits are the group, class, position and subposition.
- Pick the 17-digit code on tasnif.soliq.uz: the last 6 digits are brand and attribute; goods without a barcode use "000000".
- Show this code in electronic invoices (ESF) and online cash register receipts, and for imports in the customs cargo declaration.
- Watch for changes on tasnif.soliq.uz: deleting or changing a code takes effect after 30 days.
- No suitable code? Send a request to the operator through your personal account (reviewed within 3 working days).
Help with MXIK codes in accounting and e-invoices
Leader Audit accountants can match MXIK codes to your product list, review invoices and receipts and set up your accounting in line with the code rules.
Accounting servicesOther classes in this group
- 02903 — Halogenated derivatives of hydrocarbons
- 02905 — Acyclic alcohols and their halogenated, sulphonated, nitrated or nitrosated derivatives
- 02907 — Phenols; phenol-alcohols
- 02909 — Ethers, ether-alcohols, ether-phenols, ether-alcohol-phenols, alcohol peroxides, ether peroxides, ketone peroxides and their halogenated, sulphonated, nitrated or nitrosated derivatives
- 02912 — Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde
- 02914 — Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulphonated, nitrated or nitrosated derivatives
- 02915 — Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
- 02916 — Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their derivatives
- 02917 — Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
- 02918 — Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives
- 02921 — Amine-function compounds
- 02922 — Oxygen-function amino-compounds
- 02927 — Diazo-, azo- or azoxy-compounds
- 02928 — Organic derivatives of hydrazine or of hydroxylamine
- 02930 — Organo-sulphur compounds
- 02932 — Heterocyclic compounds with oxygen hetero-atom(s) only
- 02934 — Nucleic acids and their salts; other heterocyclic compounds
- 02936 — Provitamins and vitamins, natural or synthetic (including natural concentrates), their derivatives used primarily as vitamins, and mixtures thereof
- 02941 — Antibiotics
Frequently asked questions
What is the MXIK (IKPU) code for "Barbituric acid"?
The subposition "Barbituric acid" has code 02933001001: group 029, class 02933, position 02933001 "Heterocyclic compounds with nitrogen hetero-atom(s) only". It covers one 17-digit MXIK code starting with these 11 digits. The exact 17-digit code is chosen on tasnif.soliq.uz.
What is the MXIK (IKPU) code for "Mebendazole reference standard"?
The subposition "Mebendazole reference standard" has code 02933001020: group 029, class 02933, position 02933001 "Heterocyclic compounds with nitrogen hetero-atom(s) only". It covers one 17-digit MXIK code starting with these 11 digits. The exact 17-digit code is chosen on tasnif.soliq.uz.
How many MXIK codes are in class 02933?
As of 14.10.2026, class 02933 "Heterocyclic compounds with nitrogen hetero-atom(s) only" has 1 position, 21 subpositions and 21 codes. Every code in the class starts with 02933.
How does class 02933 differ from class 02934?
They are neighbouring classes of group 029. Class 02933 "Heterocyclic compounds with nitrogen hetero-atom(s) only" has 1 position and 21 codes; class 02934 "Nucleic acids and their salts; other heterocyclic compounds" has 1 position and 15 codes. The class is digits 4–5 of the MXIK code, so a wrong class changes the base code of the item.
What if there is no suitable MXIK code?
According to the official tasnif.soliq.uz FAQ, codes are searched by subposition name, brand, barcode or the first 4 digits of the customs (TN VED) code, via the site questionnaire or in the Excel export of the database. If nothing fits, a request is sent to the catalogue operator through the personal account; it is reviewed within 3 working days.
Sources
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