2,2-Bis((4-cyanatophenyl)propane from China
Also known as bisphenol A dicyanate, this compound is explicitly named in HTS 2929.90.0500 and consists of two 4-cyanatophenyl groups linked by an isopropylidene bridge. It functions as a reactive monomer for cyanate ester thermoset resins widely used in electronics and structural composites. Classification under 'other nitrogen function' reflects the cyanato group's defining chemical characteristic.
Duty Rate — China → United States
37.5%
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Submit NMR or HPLC certificates verifying identity as the exact bisphenol A dicyanate isomer listed
• Declare any polymerization inhibitors separately to prevent mixture classification under chapter 38
• Ensure packaging prevents premature curing, as heat/pressure could alter product state