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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for other non-fused quinoline derivatives
Only specifically named compounds get 2933.49.15.00; others go to residual.
If considered a simple aromatic hydrocarbon derivative
Chapter 29 prioritizes acyclic hydrocarbons over heterocyclics in some cases.
If containing additional sugar or nucleotide functions
Other organic compounds with complex functions shift to heading 2942.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include NMR or GC-MS spectra in documentation to confirm isoquinoline identity
• Label containers with UN number if hazardous; check flash point requirements
• Verify not excluded under chapter notes as a coloring matter derivative
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.
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.
8-Methylquinoline in Ethanol Solution
10% 8-Methylquinoline dissolved in ethanol for safe transport, classified under HTS 2933.49.15.00 per Chapter 29 note (e) as necessary solvent packaging. Used in pharma pilot production.