Isoquinoline from China
Isoquinoline is a heterocyclic aromatic organic compound with a benzene ring fused to a pyridine ring. It is imported under HTS 2934.99.90.01 as other heterocyclic compounds and used in alkaloid synthesis and as a corrosion inhibitor.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide flash point data (108°C) for proper IMDG Class 6.1 hazardous material declaration
• Include end-use statement if for pharmaceutical synthesis to qualify for duty exemptions
• Test for pyridine content impurities which could trigger different classification