Anthraquinone-2-Sulfonic Acid Drug Form from China
Anthraquinone-2-sulfonic acid serves as a pharmaceutical intermediate for sulfonamide drugs and dyes with therapeutic applications. Under HTS 2914.69.21.00 as a sulfonated quinone drug per Chapter 29 notes on derivatives.
Duty Rate — China → United States
18%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Sulfonation degree certification needed; Chapter 29 note covers compound sulfonated derivatives
• pH stability docs for aqueous solutions per Chapter note (d)