Vinyltriphenylsilane from China
An organosilicon compound with three phenyl groups and vinyl functionality bound to silicon, used in polymer chemistry. Falls under HTS 2931.90.30.00 as an aromatic organo-inorganic compound described in U.S. note 3 to section VI. Silicon-carbon bonds with aromatic substituents qualify it for chapter 29 classification.
Duty Rate — China → United States
41.5%
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
• Provide elemental analysis confirming >50% aromatic content and Si-C bonding
• Include REACH/SDS documentation for silicone intermediates; note flammability hazards
• Avoid Chapter 39 classification by emphasizing monomeric chemical identity over polymer use