Acriflavine Base Technical Grade from China
Technical grade acriflavine base is the non-salt form explicitly provided for in HTS 2933.99.4200. Used in industrial antiseptic formulations and aquaculture, this nitrogen-heterocyclic compound maintains the precise chemical identity required for this tariff subheading. Purity typically 95-98% for non-pharmaceutical applications.
Duty Rate — China → United States
12.5%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Differentiate technical vs USP grades in documentation to avoid pharmaceutical scrutiny
• For aquaculture use, comply with EPA/FDA fish drug import regulations
• Batch certificates must specify 'base' vs 'hydrochloride' to match exact HTS description