N-Nitrosodiphenylamine from Mexico
N-Nitrosodiphenylamine is a nitroso derivative of diphenylamine explicitly listed under HTS 2921.44.0500. It serves as an intermediate in organic synthesis and as a reagent in analytical chemistry. The nitroso group (-NO) attached to the nitrogen distinguishes it within the diphenylamine derivatives category of Chapter 29.
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
• Include TSCA certification as nitrosamines are scrutinized under US chemical regulations
• Declare exact CAS number (86-30-6) and nitroso content; misdeclaration risks classification under general nitro compounds