Indole-3-Acetic Acid
Indole-3-acetic acid (auxin) is a plant growth regulator with carboxylic acid function on the indole core, classified under HTS 2933.99.0500 as an indole derivative. The heterocyclic structure takes precedence over the acid function per Chapter 29 notes.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If acid function considered principal characteristic
If carboxylic acid dominates over heterocyclic identification, moves to acid headings.
If formulated as herbicide or plant growth regulator
Pesticide formulations shift to Chapter 38 regardless of active ingredient classification.
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Import Tips & Compliance
• Carboxylic acid function subordinate to named heterocycle per Chapter 29 note on function precedence
• Include EPA registration if marketed as pesticide; technical grade stays in Chapter 29
Related Products under HTS 2933.99.05.00
Acridine
Acridine is a heterocyclic aromatic compound with a nitrogen hetero-atom in its tricyclic structure, classified under HTS 2933.99.0500 as a specific aromatic heterocyclic compound. It serves as a fundamental building block in organic synthesis for pharmaceuticals and dyes.
Indole
Indole is a bicyclic aromatic heterocyclic compound featuring a benzene ring fused to a pyrrole ring with nitrogen hetero-atom, specifically named in HTS 2933.99.0500. It is widely used as an intermediate in synthesizing pharmaceuticals, perfumes, and agrochemicals.
1-Methylindole
1-Methylindole is a modified aromatic indole derivative with a methyl group at the nitrogen position, falling under HTS 2933.99.0500 as a named aromatic heterocycle modification. Commonly used in organic synthesis for pharmaceuticals and as a fragrance intermediate.
9-Aminoacridine
9-Aminoacridine is an acridine derivative with an amino group at position 9, classified under HTS 2933.99.0500 due to its core acridine structure despite additional nitrogen functionality. Used in pharmaceutical intermediates and as a fluorescent dye base.
Tryptophan
L-Tryptophan is an essential amino acid featuring an indole side chain attached to alanine, classified under HTS 2933.99.0500 due to its indole structure. The heterocyclic nitrogen compound takes precedence over amino acid classification.
Indole-3-Carboxaldehyde
Indole-3-carboxaldehyde features an aldehyde group at position 3 of the indole ring, remaining under HTS 2933.99.0500 as the named heterocyclic compound prevails over aldehyde function. Used in synthesis of pharmaceuticals and fragrances.