HS code · 6-digit subheading
HS Code 3204.20 – Dyes; synthetic organic products of a kind used as fluorescent brightening agents
HS code 3204.20 is the 6-digit subheading for dyes, synthetic organic products of a kind used as fluorescent brightening agents. It is used for stilbene derivatives (e.g., Tinopal CBS-X), coumarin derivatives, pyrazoline derivatives, naphthalimide derivatives and benzoxazole derivatives.
What HS 3204.20 covers
Fluorescent brightening agents (FBAs), also known as optical brighteners, are synthetic organic compounds that absorb ultraviolet light and re-emit it as visible blue light, making materials appear whiter and brighter. They are extensively used in detergents, textiles (especially cotton and synthetics), paper, and plastics. This trade is driven by consumer demand for whiter whites and brighter colors in laundry, and by manufacturers seeking to enhance the visual appeal of their products. Major importers include countries with large detergent manufacturing industries (e.g., USA, EU, China), textile finishing plants, and paper mills. Exporters are typically specialized chemical producers from countries like China, Germany, and India. Key factors include regulatory approvals for use in consumer products, environmental impact of discharge, and the development of agents effective on various substrates and under different processing conditions. The market is highly competitive, with continuous innovation in performance and sustainability.
- Covers
- Stilbene derivatives (e.g., Tinopal CBS-X)
- Coumarin derivatives
- Pyrazoline derivatives
- Naphthalimide derivatives
- Benzoxazole derivatives
- Bis-benzoxazolylthiophene
- Distyrylbiphenyl derivatives
- Examples
- BASF Tinopal
- Clariant Hostalux
- Huntsman Uvitex
- Archroma Leucophor
Codes often confused with 3204.20
Common mistake. FBAs are sometimes confused with actual dyes (320411-320419) because they modify appearance, but their primary function is brightening, not imparting color, which is a key distinction.
Top exporters and importers of HS code 320420, 2025
In 2025, the largest exporter of HS code 320420 in UN Comtrade data was China, with 28% of world exports; the largest importer in UN Comtrade data was Indonesia, with 8.4% 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 $145M 28% of world exports
- 2 Switzerland $74M 15% of world exports
- 3 India $56M 11% of world exports
World total: $508M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Indonesia $40M 8.4% of world imports
- 2 Germany $37M 7.6% of world imports
- 3 United States $36M 7.6% of world imports
World total: $483M 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 3204.20 3
Brazil splits HS 3204.20 into 3 NCM codes, Mercosur's 8-digit tariff lines.
- 3204.20.1 Stilbene derivativesDerivados do estilbeno Group
- 3204.20.11 Triazinylaminostilbene disulphonic derivativesDerivados do ácido 4,4-bis-(1,3,5)triazinil-6-aminoestilbeno-2,2-dissulfônico
- 3204.20.19 Other stilbene optical brightenersOutros
- 3204.20.90 Other fluorescent brightening agentsOutros
All Brazil NCM codes in heading 32.04 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3204.20
What is HS code 320420?
HS code 320420 is a 6-digit subheading in the Harmonized System that covers: Dyes; synthetic organic products of a kind used as fluorescent brightening agents. Fluorescent brightening agents (FBAs), also known as optical brighteners, are synthetic organic compounds that absorb ultraviolet light and re-emit it as visible blue light, making materials appear whiter and brighter. They are extensively used in detergents, textiles (especially cotton and synthetics), paper, and plastics. This trade is driven by consumer demand for whiter whites and brighter colors in laundry, and by manufacturers seeking to enhance the visual appeal of their products. Major importers include countries with large detergent manufacturing industries (e.g., USA, EU, China), textile finishing plants, and paper mills. Exporters are typically specialized chemical producers from countries like China, Germany, and India. Key factors include regulatory approvals for use in consumer products, environmental impact of discharge, and the development of agents effective on various substrates and under different processing conditions. The market is highly competitive, with continuous innovation in performance and sustainability.
What products fall under HS code 320420?
Stilbene derivatives (e.g., Tinopal CBS-X), Coumarin derivatives, Pyrazoline derivatives, Naphthalimide derivatives, Benzoxazole derivatives, Bis-benzoxazolylthiophene, Distyrylbiphenyl derivatives
What are common misclassifications for HS code 320420?
FBAs are sometimes confused with actual dyes (320411-320419) because they modify appearance, but their primary function is brightening, not imparting color, which is a key distinction.
Which countries are the top exporters of goods under HS code 320420?
In 2025, the top exporters of HS code 320420 in UN Comtrade data were China ($145M, 28% of world exports), Switzerland ($74M) and India ($56M). World exports came to about $508M, 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 320420?
In 2025, the top importers of HS code 320420 in UN Comtrade data were Indonesia ($40M, 8.4% of world imports), Germany ($37M) and the United States ($36M). World imports came to about $483M, 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 320420 structured?
HS code 320420 is a 6-digit subheading under the Harmonized System. The first 2 digits (32) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (20) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 320420?
Brazil splits HS code 320420 into 3 NCM codes: 3204.20.11 (Triazinylaminostilbene disulphonic derivatives), 3204.20.19 (Other stilbene optical brighteners), 3204.20.90 (Other fluorescent brightening agents). The first 6 digits of each match the HS code.