Acridine and indole
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Other: > Other: > Aromatic or modified aromatic: > Acridine and indole
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Products classified 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.
3-Acetylindole
3-Acetylindole contains a ketone functionality at position 3 of the indole structure, classified under HTS 2933.99.0500 with the heterocycle taking precedence over ketone classification. Important intermediate for alkaloid synthesis.
Indole-3-Butyric Acid
Indole-3-butyric acid is a synthetic auxin with a four-carbon carboxylic acid chain on indole, under HTS 2933.99.0500 due to indole precedence. Widely used in plant propagation and rooting hormones.
2-Methylindole
2-Methylindole is a simple alkyl-substituted indole with methylation at position 2, falling squarely under HTS 2933.99.0500 as a modified aromatic indole. Used in perfume synthesis and as pharmaceutical intermediate.
Acridine Orange Base
Acridine orange base is a dialkylamino-substituted acridine used as fluorescent dye precursor, classified under HTS 2933.99.0500 based on acridine core. The free base form precedes any hydrochloride salt classification.
Indole-3-Methanol
Indole-3-methanol (gramine precursor) features a hydroxymethyl group on indole, under HTS 2933.99.0500 with heterocycle precedence over alcohol function. Used in alkaloid total synthesis.
5-Methoxyindole
5-Methoxyindole contains methoxy substitution on the benzene ring of indole, classified under HTS 2933.99.0500 as modified aromatic indole. Key intermediate for melatonin synthesis.
Indole-3-Propionic Acid
Indole-3-propionic acid features a three-carbon carboxylic acid chain, under HTS 2933.99.0500 due to indole structure precedence. Used as neurotransmitter precursor and antioxidant.
6-Fluoroindole
6-Fluoroindole is a halogenated indole derivative with fluorine at position 6, classified under HTS 2933.99.0500 as aromatic modified indole. Halogen doesn't trigger separate classification per Chapter 29 notes.
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.