HS-4 · Heading
2934 — Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds
Chapter 29: Organic chemicals
Plain-language overview
Use HS-4 2934 when importing or exporting nucleic acids and heterocyclic compounds like thiazole or phenothiazine derivatives. For example, a shipment of benzothiazole used in pharmaceuticals falls under this heading.
When deciding between HS-6 293410 and HS-6 293420, note that the former includes compounds with an unfused thiazole ring, while the latter is for those containing a benzothiazole ring-system. Ensure you check the structure of your product carefully.
If your product features a phenothiazine ring-system, it should be classified under HS-6 293430. For other compounds not specifically mentioned in the previous lines, consider HS-6 293491 for miscellaneous heterocyclic compounds.
For fentanyls and their derivatives that don’t fit into the previous categories, use HS-6 293492. If your product is a nucleic acid or another heterocyclic compound not classified elsewhere in this heading, HS-6 293499 may be appropriate.
Keywords & topics
Short phrases that describe this HS-4 heading when you're searching or filtering schedules.
nucleic acids · heterocyclic compounds · thiazole ring · benzothiazole · phenothiazine · fentanyls · chemical classification · import codes · export regulations · pharmaceutical compounds · agricultural chemicals · laboratory reagents · chemical structure · salts of nucleic acids · organic chemicals
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Benzothiazole for use in rubber manufacturing
- Thiazole derivatives used in agricultural chemicals
- Phenothiazine for veterinary medicine applications
- Fentanyl analogs for pharmaceutical use
- Nucleic acids for genetic research
- Other heterocyclic compounds used in dyes
- Salts of nucleic acids for laboratory applications
Common questions
How people often phrase their search when they're trying to classify goods like yours.
- What is HS-4 2934 used for?
- How to classify benzothiazole in HS codes?
- What are the differences between HS-6 293410 and 293420?
- Are fentanyls classified under HS-4 2934?
- What products fall under HS-6 293499?
- How to determine the right HS code for phenothiazine?
- What are the import regulations for nucleic acids?
Related topics
Longer phrases that come up when you're comparing codes or talking to a broker.
- how to classify heterocyclic compounds for import
- difference between thiazole and benzothiazole in HS codes
- nucleic acids and their salts classification
- importing fentanyls under HS-4 2934
- examples of products under HS-6 293491
- guidelines for exporting phenothiazine compounds
- understanding HS codes for organic chemicals
- how to choose the right HS-6 subheading
- nomenclature for heterocyclic compounds
- regulatory requirements for importing nucleic acids
- chemical structure classification in HS coding
- n.e.c. in heading number 2934 explained
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products are included in HS-4 2934?
- HS-4 2934 includes nucleic acids, their salts, and various heterocyclic compounds such as thiazoles, benzothiazoles, and phenothiazines.
- How do I determine the correct HS-6 code for my product?
- Identify the specific chemical structure of your product. Compare it against the descriptions of HS-6 subheadings to find the best match.
- What does n.e.c. mean in the context of HS codes?
- n.e.c. stands for 'not elsewhere classified,' indicating that the product does not fit into the specified categories but still falls under the broader heading.
- Are there any specific import regulations for nucleic acids?
- Yes, importing nucleic acids may require compliance with specific regulations, including safety assessments and documentation for biological materials.
- Can I use HS-4 2934 for all heterocyclic compounds?
- No, you must classify heterocyclic compounds based on their specific structures under the appropriate HS-6 subheading.
- What is the significance of the benzothiazole ring in classification?
- The presence of a benzothiazole ring determines whether a compound falls under HS-6 293420, which is specifically for compounds with that structure.
- How can I find more information on HS-4 2934?
- Consult the Harmonized System documentation or reach out to a customs broker for detailed guidance on classification and regulations.
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Heading-browse mode uses HS-6 293400 (first line of this block).
HS-6 subheadings (6)
- 293410Heterocyclic compounds; containing an unfused thiazole ring (whether or not hydrogenated) in the structure
- 293420Heterocyclic compounds; containing in the structure, a benzothiazole ring-system (whether or not hydrogenated), not further fused
- 293430Heterocyclic compounds; containing in the structure, a phenothiazine ring-system (whether or not hydrogenated), not further fused
- 293491Heterocyclic compounds; other heterocyclic compounds, n.e.c. in 2934.1, 2934.2 and 2934.3
- 293492Heterocyclic compounds; other fentanyls n.e.c. in 2934, and their derivatives
- 293499Nucleic acids and their salts, other heterocyclic compounds, n.e.c. in heading number 2934