Barbital Sodium Crystals from China
Barbital sodium, the first synthesized barbiturate, contains pyrimidine ring and is specifically named in HTS 2933.53.00.00. Used in research and legacy formulations. Imported as crystalline powder meeting pharmacopeia standards.
Duty Rate — China → United States
112.5%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 to this subchapter
Import Tips
• Research imports may qualify for duty-free under HTSUS 9810.00.75 with IRB approval
• Stabilizer content <1% required; higher levels violate Chapter 29 note 2(f)
• Declare exact water content; hydrates may affect duty weight calculations