HS code · 6-digit subheading
HS Code 2918.29 – Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2
HS code 2918.29 is the 6-digit subheading for acids, carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2. It is used for salicylic anhydride, salicyloyl chloride, chlorosalicylic acid derivatives, dihydroxybenzoic acid derivatives and phenoxyacetic acid derivatives (with phenol function).
What HS 2918.29 covers
This 'basket' HS code covers a diverse range of derivatives of carboxylic acids with a phenol function, specifically their anhydrides, halides, peroxides, peroxyacids, and other derivatives, not elsewhere specified within the 2918.2 sub-heading. These compounds are typically specialized intermediates crucial for advanced organic synthesis, finding applications in the pharmaceutical, agrochemical, and polymer industries. Importers and exporters include fine chemical manufacturers, research and development laboratories, and companies requiring custom synthesis for complex molecules. Key aspects for trade involve the often high purity required for these intermediates, their specific reactivity in chemical reactions, and the niche, high-value applications they serve in creating sophisticated chemical products. This code captures a variety of specialized, less common derivatives.
- Covers
- Salicylic anhydride
- Salicyloyl chloride
- Chlorosalicylic acid derivatives
- Dihydroxybenzoic acid derivatives
- Phenoxyacetic acid derivatives (with phenol function)
- Examples
- TCI Chemicals (reagents)
- Alfa Aesar (research chemicals)
- specific custom synthesis providers
Codes often confused with 2918.29
Common mistake. As a broad 'other' category, misclassification with other specific phenolic carboxylic acids (e.g., 2918.21) or even general organic chemicals in Chapter 29 is common if the exact chemical structure and derivative type are not precisely identified.
Top exporters and importers of HS code 291829, 2025
In 2025, the largest exporter of HS code 291829 in UN Comtrade data was China, with 28% of world exports; the largest importer in UN Comtrade data was the United States, with 15% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $238M 28% of world exports
- 2 South Korea $133M 16% of world exports
- 3 Switzerland $93M 11% of world exports
World total: $852M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $135M 15% of world imports
- 2 Germany $102M 11% of world imports
- 3 Japan $84M 9.1% of world imports
World total: $920M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM codes for 2918.29 9
Brazil splits HS 2918.29 into 9 NCM codes, Mercosur's 8-digit tariff lines.
- 2918.29.10 Hydroxynaphthoic acidsÁcidos hidroxinaftoicos
- 2918.29.2 p-Hydroxybenzoic acid, its salts and estersÁcido p-hidroxibenzoico, seus sais e seus ésteres Group
- 2918.29.21 p-Hydroxybenzoic acidÁcido p-hidroxibenzoico
- 2918.29.22 MethylparabenMetilparabeno
- 2918.29.23 PropylparabenPropilparabeno
- 2918.29.29 Other p-hydroxybenzoic acid salts and estersOutros
- 2918.29.30 Gallic acid, its salts and estersÁcido gálico, seus sais e seus ésteres
- 2918.29.40 Pentaerythrityl tetrakis(hydroxyphenylpropionate)Tetrakis(3-(3,5-di-ter-butil-4-hidroxifenil)propionato) de pentaeritritila
- 2918.29.50 Octadecyl di-tert-butylhydroxyphenylpropionate3-(3,5-Di-ter-butil-4-hidroxifenil)propionato de octadecila
- 2918.29.90 Other phenol-function carboxylic acidsOutros
All Brazil NCM codes in heading 29.18 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2918.29
What is HS code 291829?
HS code 291829 is a 6-digit subheading in the Harmonized System that covers: Acids; carboxylic acids, (with phenol function but without other oxygen function), their anhydrides, halides, peroxides, peroxyacids and their derivatives, n.e.c. in item no. 2918.2. This 'basket' HS code covers a diverse range of derivatives of carboxylic acids with a phenol function, specifically their anhydrides, halides, peroxides, peroxyacids, and other derivatives, not elsewhere specified within the 2918.2 sub-heading. These compounds are typically specialized intermediates crucial for advanced organic synthesis, finding applications in the pharmaceutical, agrochemical, and polymer industries. Importers and exporters include fine chemical manufacturers, research and development laboratories, and companies requiring custom synthesis for complex molecules. Key aspects for trade involve the often high purity required for these intermediates, their specific reactivity in chemical reactions, and the niche, high-value applications they serve in creating sophisticated chemical products. This code captures a variety of specialized, less common derivatives.
What products fall under HS code 291829?
Salicylic anhydride, Salicyloyl chloride, Chlorosalicylic acid derivatives, Dihydroxybenzoic acid derivatives, Phenoxyacetic acid derivatives (with phenol function)
What are common misclassifications for HS code 291829?
As a broad 'other' category, misclassification with other specific phenolic carboxylic acids (e.g., 2918.21) or even general organic chemicals in Chapter 29 is common if the exact chemical structure and derivative type are not precisely identified.
Which countries are the top exporters of goods under HS code 291829?
In 2025, the top exporters of HS code 291829 in UN Comtrade data were China ($238M, 28% of world exports), South Korea ($133M) and Switzerland ($93M). World exports came to about $852M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 291829?
In 2025, the top importers of HS code 291829 in UN Comtrade data were the United States ($135M, 15% of world imports), Germany ($102M) and Japan ($84M). World imports came to about $920M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 291829 structured?
HS code 291829 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (18) identify the heading, and digits 5-6 (29) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 291829?
Brazil splits HS code 291829 into 9 NCM codes: 2918.29.10 (Hydroxynaphthoic acids), 2918.29.21 (p-Hydroxybenzoic acid), 2918.29.22 (Methylparaben), 2918.29.23 (Propylparaben), 2918.29.29 (Other p-hydroxybenzoic acid salts and esters), 2918.29.30 (Gallic acid, its salts and esters), 2918.29.40 (Pentaerythrityl tetrakis(hydroxyphenylpropionate)), 2918.29.50 (Octadecyl di-tert-butylhydroxyphenylpropionate), and more listed on this page. The first 6 digits of each match the HS code.