Fast Violet Base 3B from Mexico
Fast Violet Base 3B is a chemically pure aromatic cyclic carbamate used as a diazo base for violet-fast azo colorants in leather dyeing. HTS 2924.29.52.00 covers it as a fast color base amide-function compound.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include chromatograms proving single isomer per note (b); GOTS certification if organic textile chain
• Common issue: salt forms misclassified under note (C)