Fast Red Base B from Japan

Fast Red Base B is an aniline-derived aromatic monoamine salt specifically formulated as a fast color base for azoic dyeing processes. It couples with naphthol AS to produce brilliant, lightfast red shades on cotton and viscose fabrics. Classified under HTS 2921.42.55.00 as a derivative of aniline used primarily in dye manufacturing for its amine-function chemistry.

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%

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Import Tips

• Verify chemical purity and provide Certificate of Analysis (CoA) confirming it's a fast color base per Chapter 29 notes, not a finished dye (excluded under note 2(g))

• Include Safety Data Sheet (SDS) detailing amine-function composition to avoid misclassification as mixtures or Chapter 32 coloring matter

• Label shipments clearly as 'Fast Color Bases - For Dye Manufacturing Use Only' to prevent retail packing confusion with heading 3212