L-Tryptophan Powder
L-Tryptophan Powder is an essential amino acid used in dietary supplements for sleep and mood support. Falls under HTS 2922.49.80.00 as a simple amino acid with carboxyl oxygen function only, distinct from heterocyclic derivatives in other headings.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If indole derivatives with nucleic function
Tryptophan structural analogues with heterocyclic rings may classify under Chapter 29 later headings.
If in proprietary supplement blends
Retail food supplements containing tryptophan classified as food preparations.
If nitrogen-oxides derivatives
If containing nitro or additional nitrogen-oxygen functions, shifts per chapter note exclusions.
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Import Tips & Compliance
• Submit structure confirmation to verify single oxygen function; ensure GMP certification for supplement imports; monitor for banned substance lists in sports nutrition
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