4,7-Dichloroquinoline Stabilized with Antioxidant from China
Stabilized 4,7-dichloroquinoline with added antioxidant for transport preservation, permitted under Chapter 29 note (f), maintains classification in HTS 2933.49.08.00 as the primary compound remains chemically defined. Used in multi-step synthesis of quinoline-based APIs.
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
• Document stabilizer addition as 'necessary for preservation' per Chapter Note (f) to justify classification
• Ensure stabilizer <1% w/w to avoid 'particularly suitable for specific use' exclusion
• Separate stabilizer composition in SDS to preempt mixture classification challenges