8-Methylquinoline and Isoquinoline
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused: > Other: > 8-Methylquinoline and Isoquinoline
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified 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.
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.
Isoquinoline Anti-Dusting Grade
Isoquinoline with anti-dusting agent added for safety, permitted under Chapter 29 note (g), stays in HTS 2933.49.15.00. For bulk industrial handling.
8-Methylquinoline Reference Standard
USP/NF grade 8-Methylquinoline reference standard, a chemically pure compound under HTS 2933.49.15.00. Used for analytical method validation in pharma QC.
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).