Collidine Mixture (2,4,6-Trimethylpyridine) from Germany
Collidine refers to trimethylpyridines like 2,4,6-trimethylpyridine, used in epoxy resin curing and as resolving agents. HTS 2933.39.10.00 covers collidines as specifically named pyridine derivatives with unfused rings. High boiling point (170°C) solvent applications.
Duty Rate — Germany → United States
25%
Rate breakdown
9903.04.6215%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• HPLC chromatogram required to confirm trimethylpyridine composition vs. diethylpyridines
• UN 2610 Corrosive classification if >90% concentration; neutralization agents prohibited
• Avoid bulk imports without stabilizer declaration per Chapter 29 note (f)