MXIK (IKPU) codes, class 02918: Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives
1 position · 23 subpositions · 37 codes · tasnif.soliq.uz, data as of 14.10.2026
Updated:
Class 02918 "Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives" belongs to group 029 "Organic chemicals" of the MXIK (IKPU) classifier. It contains 1 position, 23 subpositions and 37 codes. That is 8.8% of all codes in the group.
All subpositions of the class sit in a single position, 02918001 "Carboxylic acids with additional oxygen function and their anhydrides…". The largest subpositions are "Citric acid" (02918001007, 12), "Potassium sodium tartrate" (02918001004, 3), "Malic acid" (02918001022, 2). 20 of the 23 subpositions hold exactly one code. Other examples: "Tartaric acid", "Aluminon", "Tricalcium citrate", "Methylparaben".
By number of codes the class ranks 2nd of 42 in the group. Neighbouring classes: 02917 "Polycarboxylic acids, their anhydrides, halides, peroxides and…" (13 codes) and 02919 "Phosphoric esters and their salts, including lactophosphates; their…" (2 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 2918.
Codes in this class
| Code | Name | Copy code |
|---|---|---|
| 02918001 | Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives37 codes | |
| 02918001001 | Tartaric acid1 code | |
| 02918001004 | Potassium sodium tartrate3 codes | |
| 02918001007 | Citric acid12 codes | |
| 02918001008 | Ammonium citrate1 code | |
| 02918001009 | Potassium citrate1 code | |
| 02918001010 | Sodium salicylate1 code | |
| 02918001011 | Sulphosalicylic acid1 code | |
| 02918001012 | Aluminon1 code | |
| 02918001013 | Sodium dodecyl sulphate1 code | |
| 02918001014 | Sodium citrate1 code | |
| 02918001015 | Lactic acid1 code | |
| 02918001016 | Sodium lactate1 code | |
| 02918001017 | Tricalcium citrate1 code | |
| 02918001018 | Calcium citrate1 code | |
| 02918001019 | Palsgaard (emulsifier)1 code | |
| 02918001020 | Salicylic acid1 code | |
| 02918001022 | Malic acid2 codes | |
| 02918001024 | Ferutinin1 code | |
| 02918001025 | Methylparaben1 code | |
| 02918001026 | Acetylsalicylic acid1 code | |
| 02918001027 | Magnesium lactate1 code | |
| 02918001028 | Calcium gluconate1 code | |
| 02918001029 | Other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids1 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
- 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
- 02933 — Heterocyclic compounds with nitrogen 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 "Citric acid"?
The subposition "Citric acid" has code 02918001007: group 029, class 02918, position 02918001 "Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives". It covers 12 codes: all of them start with these 11 digits, and the last 6 digits stand for brand and attribute. The exact 17-digit code is chosen on tasnif.soliq.uz.
What is the MXIK (IKPU) code for "Sodium lactate"?
The subposition "Sodium lactate" has code 02918001016: group 029, class 02918, position 02918001 "Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives". 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 02918?
As of 14.10.2026, class 02918 "Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their derivatives" has 1 position, 23 subpositions and 37 codes. Every code in the class starts with 02918.
How does class 02918 differ from class 02919?
They are neighbouring classes of group 029. Class 02918 "Carboxylic acids with additional oxygen function and their anhydrides…" has 1 position and 37 codes; class 02919 "Phosphoric esters and their salts, including lactophosphates; their…" has 1 position and 2 codes. The class is digits 4–5 of the MXIK code, so a wrong class changes the base code of the item.
Where must the MXIK code be shown?
Under the Regulation on the National Catalogue (Cabinet of Ministers Resolution No. 263 of 28 April 2025) the catalogue is used for electronic invoices, online cash register receipts and the customs cargo declaration (except goods imported for the first time). A code that does not match the base code (first 11 digits) can lead to a fine of 1% of the value under Article 223(5) of the Tax Code.
Sources
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