What products fall under HS-4 2931?

HS-4 2931 includes organo-inorganic compounds like tetramethyl lead, tributyltin compounds, and various organo-phosphorous derivatives.

How do I choose the correct HS-6 code?

Identify the specific chemical structure or use of your product. Refer to the detailed descriptions under each HS-6 line.

Are there any restrictions on importing these compounds?

Yes, some organo-inorganic compounds, especially those that are halogenated, may be subject to regulatory restrictions depending on your country.

What is the difference between halogenated and non-halogenated derivatives?

Halogenated derivatives contain halogen atoms in their structure, while non-halogenated derivatives do not, which often affects their usage and regulatory status.

Can I classify my product under 'other' in HS-4 2931?

If your product does not fit the specific categories listed, you may classify it under **HS-6 293190**, which covers other organo-inorganic compounds.

HS-4 · Heading

2931 — Other organo-inorganic compounds

Chapter 29: Organic chemicals

Plain-language overview

Use HS-4 2931 when importing or exporting organo-inorganic compounds, such as tetramethyl lead or tributyltin compounds. These chemicals are often used in industrial applications, including fuel additives and biocides.

To distinguish between the HS-6 lines, consider the specific chemical composition. For example, 293110 covers tetramethyl lead and tetraethyl lead, while 293120 is for tributyltin compounds. If your product doesn’t fit these categories, check the non-halogenated organo-phosphorous derivatives under 293141 to 293149.

If your product is a non-halogenated organo-phosphorous derivative, you’ll need to identify its specific type. For instance, 293141 is for dimethyl methylphosphonate, while 293144 refers to methylphosphonic acid. If your compound is not listed, you may fall under 293149, which covers other non-halogenated derivatives.

Keywords & topics

Short phrases that describe this HS-4 heading when you're searching or filtering schedules.

organo-inorganic compounds · tetramethyl lead · tributyltin compounds · non-halogenated organo-phosphorous derivatives · methylphosphonic acid · chemical import codes · phosphorus derivatives · chemical classification · industrial chemicals · chemical export regulations

Examples

Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.

Tetramethyl lead used in gasoline formulations.
Tributyltin compounds for antifouling paints.
Dimethyl methylphosphonate as a chemical intermediate.
Methylphosphonic acid for agricultural applications.
Halogenated organo-phosphorous derivatives for flame retardants.

Common questions

How people often phrase their search when they're trying to classify goods like yours.

What is HS-4 2931 used for?
How to classify organo-inorganic compounds?
What are the differences between HS-6 lines under 2931?
Is tributyltin compound regulated?
How to determine the correct HS code for phosphorous derivatives?
What are examples of organo-inorganic compounds?

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What products fall under HS-4 2931?: HS-4 2931 includes organo-inorganic compounds like tetramethyl lead, tributyltin compounds, and various organo-phosphorous derivatives.
How do I choose the correct HS-6 code?: Identify the specific chemical structure or use of your product. Refer to the detailed descriptions under each HS-6 line.
Are there any restrictions on importing these compounds?: Yes, some organo-inorganic compounds, especially those that are halogenated, may be subject to regulatory restrictions depending on your country.
What is the difference between halogenated and non-halogenated derivatives?: Halogenated derivatives contain halogen atoms in their structure, while non-halogenated derivatives do not, which often affects their usage and regulatory status.
Can I classify my product under 'other' in HS-4 2931?: If your product does not fit the specific categories listed, you may classify it under **HS-6 293190**, which covers other organo-inorganic compounds.

Continue classification

Parent context

HS code directory Chapter 29

Nearby siblings

Previous HS-4 2930 Next HS-4 2932

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