2,2-Bis((4-cyanatophenyl)propane from Mexico
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 — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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