Spermine Tetrahydrochloride from Germany
Spermine tetrahydrochloride, a tetraamine salt, classified under HTS 2921.29.00.55 as acyclic polyamine derivative salt for biochemical research.
Duty Rate — Germany → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Verify Sigma-Aldrich/USP reference standards matching imported specification
• Document research institution end-user to avoid pharmaceutical classification
• Maintain cold chain documentation (2-8°C storage required)