Isoquinoline for Dye Coupling
High purity isoquinoline used as dye coupler intermediate, classified as pure compound in HTS 2933.49.15.00 despite end use. Not excluded under chapter note (g).
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If synthetic azo dye component
Dye intermediates prepared for specific use go to Chapter 32.
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Import Tips & Compliance
• End use statements should not override chemical classification
• Confirm not put up for retail sale to avoid Chapter 32
Related Products under HTS 2933.49.15.00
8-Methylquinoline
8-Methylquinoline is a heterocyclic aromatic compound containing a quinoline ring system with a methyl group at the 8-position, classified under HTS 2933.49.15.00 as a specific quinoline derivative. It serves as a key intermediate in organic synthesis for pharmaceuticals and agrochemicals.
Isoquinoline
Isoquinoline is a heterocyclic compound featuring an isoquinoline ring system, explicitly named in HTS 2933.49.15.00. It is widely used as a building block in synthesizing pharmaceuticals like papaverine and berberine alkaloids.
8-Methylquinoline 98% Purity Technical Grade
Technical grade 8-Methylquinoline at 98% purity, a chemically defined organic compound with the quinoline ring system, falls under HTS 2933.49.15.00 per Chapter 29 note (a). Used in dye manufacturing and as a reagent in analytical chemistry.
Isoquinoline Hydrochloride Salt
Isoquinoline hydrochloride is the HCl salt of isoquinoline, classified with the parent organic compound under HTS 2933.49.15.00 per Chapter Note 5(C)(1). Commonly used in medicinal chemistry research.
8-Methylquinoline for Synthesis
Laboratory reagent grade 8-Methylquinoline, a separate chemically defined compound under Chapter 29 note (a), classified in HTS 2933.49.15.00. Essential for multi-step organic synthesis in R&D.
Isoquinoline 95% with Stabilizer
Isoquinoline at 95% purity with added stabilizer for transport, allowed under Chapter 29 note (f), remains HTS 2933.49.15.00. Used in agrochemical formulation.