Ethylene Thiourea (2-Imidazolidinethione) from China
Ethylene thiourea, chemically 2-imidazolidinethione, is a heterocyclic imidazole ring compound specifically named in HTS 2933.29.0500. Used as a chemical intermediate and accelerator in rubber vulcanization processes.
Duty Rate — China → United States
25%
Rate breakdown
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)
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
• Submit TSCA certification as it's listed on EPA Toxic Substances Control Act inventory
• Include detailed purity analysis; industrial grades typically >98% purity
• Verify not classified as rubber chemical mixture which would go to Chapter 38