What is HS code 293359 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
293359
Heterocyclic compounds; containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure, (other than malonylurea and its derivatives, loprazolam, mecloqualone, methaqualone, zipeprol, and salts thereof) n.e.c. in 2933.5
Heading 2933 — Heterocyclic compounds with nitrogen hetero-atom(s) only
Chapter 29: Organic chemicals
Plain-language overview
Use HS-6 293359 when importing or exporting heterocyclic compounds that contain a pyrimidine or piperazine ring, excluding certain specified derivatives. For example, if you're shipping a pharmaceutical ingredient that includes a piperazine ring but is not one of the excluded substances, this code applies.
This code specifically covers compounds that are not classified under other specific exclusions like malonylurea or its derivatives. If you're dealing with a compound that fits the general description but is not listed among the exceptions, this HS-6 code is your go-to.
In contrast, HS-6 293356 covers heterocyclic compounds with a different structure or those that may include additional functional groups. If your product contains both pyrimidine and piperazine rings, ensure you classify it correctly to avoid customs issues.
When classifying your product, consider the chemical structure and intended use. For instance, if you're exporting a compound used in anti-anxiety medications, ensure it aligns with the specifications of HS-6 293359.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
heterocyclic compounds · pyrimidine ring · piperazine ring · organic chemicals · pharmaceutical ingredients · chemical intermediates · nitrogen heteroatoms · exporting chemicals · importing pharmaceuticals · custom synthesis · agrochemical intermediates · research chemicals · anti-anxiety medications · anti-cancer drugs
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Pharmaceutical ingredient containing a piperazine ring for anxiety treatment
- Chemical intermediate used in the synthesis of heterocyclic drugs
- Active ingredient in a veterinary medication with a pyrimidine structure
- Research chemical for laboratory use with a piperazine ring
- Custom synthesis of a compound for a specific pharmaceutical application
- Intermediate in the production of agrochemicals with nitrogen heteroatoms
- Compound used in the development of new anti-cancer drugs
Common questions
Frequent classification questions with short practical guidance.
How to classify pyrimidine ring compounds?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Are piperazine ring compounds covered under HS-6 293359?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the exclusions for HS code 293359?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Can I use HS-6 293359 for veterinary medications?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What types of products fall under HS-6 293359?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How to determine if a compound is n.e.c. in 2933.5?
Use n.e.c. only when you have ruled out every more specific line in the same section.
What are the implications of misclassifying heterocyclic compounds?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
How to classify heterocyclic compounds with nitrogen?
Use this topic to narrow your shortlist, then validate the final code against legal wording.
What does n.e.c. mean in HS code 293359?
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Examples of compounds classified under HS-6 293359
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Guidelines for shipping pyrimidine ring compounds
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Differences between HS-6 293359 and HS-6 293356
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
What are the requirements for importing piperazine ring compounds?
Check the exact product specs and destination-country tariff notes before finalizing the code.
Understanding the exclusions in HS code 293359
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Best practices for classifying organic chemicals in trade
Use this topic to narrow your shortlist, then validate the final code against legal wording.
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 under HS-6 293359?
- HS-6 293359 includes heterocyclic compounds that contain a pyrimidine or piperazine ring, excluding specific derivatives like malonylurea.
- Are there any specific exclusions I should be aware of?
- Yes, compounds like malonylurea, loprazolam, and methaqualone are excluded from this classification.
- Can I use this HS code for veterinary products?
- Yes, as long as the product fits the description and is not one of the excluded substances.
- How do I know if my compound is n.e.c. in 2933.5?
- If your compound does not fit into the specific exclusions and contains the required ring structures, it can be classified under HS-6 293359.
- What should I do if my product has both pyrimidine and piperazine rings?
- You should still classify it under HS-6 293359 unless it falls under one of the specified exclusions.
- What are the customs implications of misclassifying my product?
- Misclassification can lead to delays, fines, and additional duties, so it's crucial to classify accurately.
- Can I get a ruling on my classification?
- Yes, you can request a binding ruling from customs authorities if you're uncertain about the classification.
- What documentation do I need for importing these compounds?
- You'll typically need a commercial invoice, a certificate of analysis, and any relevant safety data sheets.
Continue classification
Parent context
Nearby siblings
Next best action
Pick one of these actions to move from reading to a defensible classification decision.