1,1-Ethylidenebis(phenyl-4-cyanate) from Mexico
This diethylstilbestrol-like cyanate ester is specifically enumerated in HTS 2929.90.0500, featuring two para-cyanatophenyl groups connected via ethylidene linkage. Used in specialty resin formulations requiring high thermal stability. Falls under 2929 as a compound with cyanato nitrogen function not covered elsewhere.
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
• Chemical identity must match exact structural name; synonyms alone insufficient for clearance
• Monitor for trace impurities that could trigger pesticide residue testing protocols
• Use UN-approved packaging for reactive organic compounds during ocean/air transport