2,2',6,6'-Tetraisopropyldiphenylcarbodiimide (TIPC) from China
2,2',6,6'-Tetraisopropyldiphenylcarbodiimide, commonly known as TIPC, is a sterically hindered aromatic carbodiimide used as a coupling agent in peptide synthesis and polymer chemistry due to its stability. It is explicitly named in HTS 2925.19.30.00 as an aromatic imide derivative, qualifying under Chapter 29 for pure, chemically defined imine-function compounds.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Verify TSCA inventory status and pre-register if new chemical; use UN-approved packaging for flammable liquids; provide SDS with detailed reactivity hazards for CBP clearance