Tromethamine (Tris(hydroxymethyl)aminomethane) from Germany
Tromethamine, or Tris base, is an organic amino buffer used in biochemistry and pharmaceuticals. HTS 2922.50.50.00 classification applies to this amino alcohol with three hydroxymethyl groups. Essential for pH control in cell culture media.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• GMP-grade requires additional FDA registration and quality control certificates
• Common in biotech; verify end-use declaration prevents pharmaceutical mixture misclassification
• Hygroscopic nature requires sealed packaging documentation