HS Code 2933
Nitrogen Heterocyclic Compounds
HS code 2933 covers nitrogen heterocyclic compounds, serving as the primary building blocks for most synthetic pharmaceuticals, vitamins, and agricultural pesti
4-digit Section VIFCL Hazmat 8
HS Code 2933 — Nitrogen Heterocyclic Compounds
These nitrogen-ring compounds form the backbone of modern medicinal chemistry. Most synthetic drugs, antidepressants, and pesticides are based on these molecules.
What's included
- Pyridine
- Melamine
- Pyrimidine
- Piperidine
What's excluded
- Nucleic acids → use
2934(Mixed nitrogen-oxygen or sulphur heterocycles and nucleic acids are in 2934.)
Common examples
- Melamine powder
- Pyridine solvent
- Atrazine (purity grade)
Frequently asked questions
Where is melamine classified?
Melamine (2,4,6-triamino-1,3,5-triazine) is a key inclusion in code 2933.61.
Trade & shipping notes
- Typical duty range: 0% - 6.5%
- Documentation: Check for ADD on Chinese melamine in various jurisdictions (EU/USA).
- Typical shipping mode: FCL
- Top exporters: China, India, Germany
- Top importers: United States, Brazil, France
Related HS codes
Key takeaway
Huge trade volume due to Melamine (plastics) and Pyridines (medications).
Related HS codes
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