Fast Black Base N from Japan
Fast Black Base N, a sulfonated amino-phenol ether, functions as a diazotizable base for deep black azo dyes in wool dyeing with high light stability. It is classified in HTS 2922.29.2600 as a fast color base, including sulfonated derivatives per Chapter 29 additional notes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Document sulfonation degree; compound derivatives still classify here unless only S-halogen atoms per 2930/2931 notes
• Require end-user certificates if dual-use concerns arise for dye vs. other chemical applications
• Monitor for emetic additions; safety additives must not change general use per Chapter 29 note (g)