Barbital (Barbitone) from China
Barbital, the diethyl derivative of barbituric acid, historically used as a sedative. Pure chemical form classified under HTS 2933.54.00.00 as a malonylurea derivative.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Commonly imported as reference standard; specify analytical use
• Small quantities typically exempt from some documentation
• Include CAS number (57-44-3) on commercial invoice