HS code · 6-digit subheading
HS Code 2931.42 – Non-halogenated organo-phosphorous derivatives; dimethyl propylphosphonate
HS code 2931.42 is the 6-digit subheading for non-halogenated organo-phosphorous derivatives, dimethyl propylphosphonate. It is used for dimethyl propylphosphonate, DMPP and propylphosphonic acid dimethyl ester.
What HS 2931.42 covers
This HS code covers dimethyl propylphosphonate, a specific non-halogenated organo-phosphorous derivative. This compound is primarily utilized as a chemical intermediate in the synthesis of various specialty chemicals, including flame retardants, plasticizers, and other polymer additives. It is traded by fine chemical manufacturers and companies involved in the production of polymers or specialized materials that require enhanced properties. Key considerations for its trade include its role in imparting specific characteristics like flame resistance and its handling as a reactive chemical intermediate.
- Covers
- Dimethyl propylphosphonate
- DMPP
- Propylphosphonic acid dimethyl ester
- Examples
- TCI Chemicals
- Sigma-Aldrich (now Merck KGaA)
- Alfa Aesar (now Thermo Fisher Scientific)
- Santa Cruz Biotechnology
Codes often confused with 2931.42
Common mistake. This compound can be confused with other organo-phosphorous compounds (e.g., 2931.90 for 'other' organo-phosphorous compounds) or even formulated flame retardants (Chapter 38) if it's part of a mixture.
Top exporters and importers of HS code 293142, 2025
In 2025, the largest exporter of HS code 293142 in UN Comtrade data was Austria, with 95% of world exports; the largest importer in UN Comtrade data was Germany, with 91% of world imports. Mexico reports $728M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.
Top exporters 2025 · share of world exports
- 1 Austria $228K 95% of world exports
- 2 United States $11K 4.4% of world exports
- 3 Canada $296 0.1% of world exports
Mexico reports $728M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.
World total: $239K Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $876K 91% of world imports
- 2 India $32K 3.3% of world imports
- 3 Austria $30K 3.1% of world imports
World total: $968K 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 code for 2931.42
Brazil does not split HS 2931.42: its NCM code is 2931.42.00.
All Brazil NCM codes in heading 29.31 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 2931.42
What is HS code 293142?
HS code 293142 is a 6-digit subheading in the Harmonized System that covers: Non-halogenated organo-phosphorous derivatives; dimethyl propylphosphonate. This HS code covers dimethyl propylphosphonate, a specific non-halogenated organo-phosphorous derivative. This compound is primarily utilized as a chemical intermediate in the synthesis of various specialty chemicals, including flame retardants, plasticizers, and other polymer additives. It is traded by fine chemical manufacturers and companies involved in the production of polymers or specialized materials that require enhanced properties. Key considerations for its trade include its role in imparting specific characteristics like flame resistance and its handling as a reactive chemical intermediate.
What products fall under HS code 293142?
Dimethyl propylphosphonate, DMPP, Propylphosphonic acid dimethyl ester
What are common misclassifications for HS code 293142?
This compound can be confused with other organo-phosphorous compounds (e.g., 2931.90 for 'other' organo-phosphorous compounds) or even formulated flame retardants (Chapter 38) if it's part of a mixture.
Which countries are the top exporters of goods under HS code 293142?
In 2025, the top exporters of HS code 293142 in UN Comtrade data were Austria ($228K, 95% of world exports), the United States ($11K) and Canada ($296). World exports came to about $239K, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Mexico reports $728M of its chapter 29 exports without product detail (confidential), so it may also belong among the top exporters.
Which countries are the top importers of goods under HS code 293142?
In 2025, the top importers of HS code 293142 in UN Comtrade data were Germany ($876K, 91% of world imports), India ($32K) and Austria ($30K). World imports came to about $968K, 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 293142 structured?
HS code 293142 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (31) identify the heading, and digits 5-6 (42) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 293142?
In Brazil, HS code 293142 is NCM 2931.42.00. The last two digits are 00 because Brazil does not split this HS code further.