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Indole-3-Carbaldehyde

Indole-3-carbaldehyde, a bicyclic benzopyrrole with aldehyde substitution, used in perfume and pharma synthesis. HTS 2933.99.9701 as other nitrogen heterocycles; aldehyde function doesn't override per classification notes.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%—6.5%
🇲🇽Mexico6.5%—6.5%
🇨🇦Canada6.5%—6.5%
🇩🇪Germany6.5%—6.5%
🇯🇵Japan6.5%—6.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2912.29Higher: 15.5% vs 6.5%

If classified by aldehyde function over heterocycle

Principal function rule; fused heterocycles stay in 2933 per Chapter order.

3302.10Higher: 10% vs 6.5%

If pre-mixed into fragrance compounds

Mixtures for perfumery use go to Chapter 33.

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Import Tips & Compliance

• GC purity >95% required; lower grades considered mixtures

• IFRA compliance for fragrance use; avoid cosmetic misdeclaration

• Aldehyde stabilizers must meet Chapter note (g) identifiability criteria

Related Products under HTS 2933.99.97.01

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Nicotine Free Base Liquid

Pure nicotine ((S)-3-(1-methylpyrrolidin-2-yl)pyridine), a pyridine-pyrrolidine bicyclic nitrogen heterocyclic compound used in pharmaceuticals and vaping. Classified in HTS 2933.99.9701 as other nitrogen heterocycles; pyridine ring qualifies despite dual heteroatoms per heading scope.

Imidazole Pharmaceutical Grade

Imidazole (1H-imidazole), a five-membered nitrogen heterocyclic ring compound used as pharmaceutical intermediate and antifungal agent. HTS 2933.99.9701 covers this azole heterocycle with nitrogen hetero-atoms only, not specified elsewhere.

Pyrazole Crystals

Pyrazole (1H-pyrazole), a five-membered aromatic heterocycle with adjacent nitrogen atoms, used in agrochemicals and pharmaceuticals. Falls under HTS 2933.99.9701 as other nitrogen heterocyclic compounds per Chapter 29 scope.

Triazole Technical Grade

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