Terrific Broth for Protein Expression from China
Terrific Broth (TB) is a rich liquid medium with glycerol, yeast extract, and tryptone for high-density E. coli cultures in recombinant protein production. HTS 3821.00.00 covers this as prepared media for microorganism development.
Duty Rate — China → United States
17.5%
Rate breakdown
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
• Provide viscosity and osmolarity data for high-density culture validation
• Label as 'lab reagent - not for food use' to prevent Chapter 21 reclassification
• Use leak-proof secondary packaging for liquid media shipments