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Isoquinoline Base from Mexico

Isoquinoline is a fused benzene-pyridine isomer with nitrogen in the non-fused position of the heterocyclic ring. Falls under HTS 2933.99.82 as other aromatic nitrogen heterocycles for pharma and perfumery.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Odor declaration for perfumery end-use; distillation purity certificates; REACH Annex XVII compliance