Vinyltriphenylsilane from Canada
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 — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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