HS Code 2931Other organo-inorganic compounds
17 six-digit codes · Heading 31 of 42 in Chapter 29 · World Customs Organization Harmonized System
HS code 2931 (also written HSN code 2931) covers organic compounds that also contain a metal or phosphorus. Use this page to see how its subheadings group by compound and how to pick the right one.
The WCO writes heading 2931 as a residual bucket: goods of Chapter 29that answer to “Other organo-inorganic compounds” and that no more specific heading in the chapter already claims. It still carries 17 six-digit codes, 293110 through 293190, so “other” is not the end of the classification here. The heading is number 31 of 42 in Chapter 29, Organic chemicals, which runs to 410 six-digit codes in all.
Six-digit codes under heading 2931
| HS Code | Import–export description |
|---|---|
| 293110 | Organo-inorganic compounds; tetramethyl lead and tetraethyl lead |
| 293120 | Organo-inorganic compounds; tributyltin compounds |
| 293141 | Non-halogenated organo-phosphorous derivatives; dimethyl methylphosphonate |
| 293142 | Non-halogenated organo-phosphorous derivatives; dimethyl propylphosphonate |
| 293143 | Non-halogenated organo-phosphorous derivatives; diethyl ethylphosphonate |
| 293144 | Non-halogenated organo-phosphorous derivatives; methylphosphonic acid |
| 293145 | Non-halogenated organo-phosphorous derivatives; salt of methylphosphonic acid and (aminominomethyl) urea (1:1) |
| 293146 | Non-halogenated organo-phosphorous derivatives; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxide |
| 293147 | Non-halogenated organo-phosphorous derivatives; (5-ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate |
| 293148 | Non-halogenated organo-phosphorous derivatives; 3,9-dimethyl-2,4,8,10-tetraoxa-3,9-diphosphaspiro[5.5] undecane 3,9-dioxide |
| 293149 | Non-halogenated organo-phosphorous derivatives; other non-halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.4 |
| 293151 | Halogenated organo-phosphorous derivatives; methylphosphonic dichloride |
| 293152 | Halogenated organo-phosphorous derivatives; propylphosphonic dichloride |
| 293153 | Halogenated organo-phosphorous derivatives; o-(3-chloropropyl) o-[4-nitro-3-(trifluoromethyl)phenyl] methylphosphonothionate |
| 293154 | Halogenated organo-phosphorous derivatives; trichlorfon (iso) |
| 293159 | Halogenated organo-phosphorous derivatives; other halogenated organo-phosphorous derivatives, n.e.c. in item no. 2931.5 |
| 293190 | Organo-inorganic compounds; other than tetramethyl lead, tetraethyl lead, tributyltin compounds, and other organo-phosphorous derivatives |
What HS code 2931 covers
Think of the code as a path. Organic chemicals in chapter 29 are the first stop, heading 2931 is the second, and a six-digit subheading is the last. Customs offices around the world share these six digits. Many countries add more digits for their own tariffs, so a national code can be longer.
These are carbon-based chemicals that also hold an element such as lead, tin or phosphorus. The heading takes only products that no earlier heading in the chapter names.
HS 2931 six-digit codes by compound group
The table above runs in code order. Here the same codes are split by the kind of chemical, so you can find your product faster.
- Metal compounds: 293110 and 293190 aside, 293110 covers tetramethyl lead and tetraethyl lead, and 293120 covers tributyltin compounds.
- Phosphorus compounds with no halogen, 293141 to 293149: named chemicals include dimethyl methylphosphonate and methylphosphonic acid. 293149 takes the rest.
- Phosphorus compounds with a halogen, 293151 to 293159: named chemicals include methylphosphonic dichloride and trichlorfon (ISO). 293159 takes the rest.
- Everything else: 293190 is for organo-inorganic compounds outside the groups above.
How to choose the right 2931 subheading
Work in three steps. This order avoids most mistakes.
First, look for the exact chemical name. A named code beats a general one, so tetraethyl lead or trichlorfon should never end up in a leftover code.
Second, if the product contains phosphorus, check it for chlorine, fluorine or another halogen. No halogen points to the 293141 to 293149 range. A halogen points to the 293151 to 293159 range.
Third, use a leftover code only when nothing named fits. These are 293149, 293159 and 293190. Each one is written as an n.e.c. or an other-than code, so they are the last stop.
If you are unsure, test your product description in the classifier. Then confirm the result with your customs broker.
Headings next to 2931 in Chapter 29
Some products look close to 2931 but belong to a neighbour. Check these before you settle.
If sulphur is the key element, start there. Heading 2919 holds phosphoric esters, so a phosphoric ester goes there. Heading 2920 covers esters of other inorganic acids of non-metals. Heading 2932 is for heterocyclic compounds with oxygen hetero-atom(s) only, so a ring structure may point you there.
The chapter page lists all of these headings side by side.
Search HS 2931 import and export shipment records
A code table tells you what a product is called. It does not tell you who trades it. For that you need shipment data.
EximDataX shows shipment-level import and export records from official customs sources. Coverage: 43 direct customs feeds plus 184 mirror-derived countries. Named buyers and named suppliers are available in 38 of the 43 direct markets. Most markets refresh weekly and some refresh daily.
You can search by HS code to see who imports and exports a product, and book a free demo.
Related
- Chapter 29 organic chemicals HS codes
- HS 2930 organo-sulphur compounds
- HS 2919 phosphoric esters
- HS 2920 esters of other inorganic acids
- HS 2932 oxygen heterocyclic compounds
- All HS code chapters
- HS 2931 import data
- HS 2931 export data
- Buyers of organo-inorganic compounds
- Suppliers of organo-inorganic compounds
- HS code classifier
- Book a free demo
Nearby headings in Chapter 29
- 2925Carboxyimide-function compounds (including saccharin and its salts) and…5 codes
- 2926Nitrile-function compounds5 codes
- 2927Diazo-, azo- or azoxy-compounds1 code
- 2928Organic derivatives of hydrazine or of hydroxylamine1 code
- 2929Nitrogen-function compounds, n.e.c. in chapter 292 codes
- 2930Organo-sulphur compounds8 codes
- 2932Heterocyclic compounds with oxygen hetero-atom(s) only13 codes
- 2933Heterocyclic compounds with nitrogen hetero-atom(s) only27 codes
- 2934Nucleic acids and their salts, whether or not chemically defined; other…6 codes
- 2935Sulphonamides6 codes
- 2936Provitamins, vitamins; natural or reproduced by synthesis (including natural…10 codes
- 2937Hormones, prostaglandins, thromboxanes and leukotrienes, natural or…9 codes
Who ships under 2931?
EximDataX tracks the live import–export records filed under this heading and the 17 codes beneath it: named buyers, suppliers, quantities and values from official customs feeds.
Section VI: Products of the Chemical or Allied Industries, chapters 28–38.
HS Code 2931: common questions
What products are classified under HS code 2931?
They are organo-inorganic compounds not named in an earlier heading. The codes split into metal compounds, phosphorus compounds and one general code.
What is the HS code for tributyltin compounds?
Use 293120. It is a code of its own.
What is the HS code for dimethyl methylphosphonate or methylphosphonic acid?
Dimethyl methylphosphonate is 293141. Methylphosphonic acid is 293144.
How do halogenated and non-halogenated organo-phosphorous derivatives differ in HS 2931?
The split is whether the compound holds a halogen. Without one, use 293141 to 293149. With one, use 293151 to 293159.
Is HSN code 2931 the same as HS code 2931?
Yes. HSN follows the Harmonized System, so it points to the same heading in Chapter 29.
Is 2931 different from organo-sulphur compounds?
Yes. Organo-sulphur compounds have their own heading, 2930.
How can I find importers and exporters of HS 2931 products?
Pick the six-digit code that fits your product and search it on EximDataX. The buyer data and supplier data pages help you look at the companies involved.
See what your buyers are buying.Then decide.
Everything we show you comes from official customs filings — records, not claims. 30 minutes. Your shipment. Your HS code. Real platform. If you don’t see something new about your market by the end of the call, we walk away. No follow-ups.