2935.90.20.00/C.I. Fast Blue Base RR/Japan

C.I. Fast Blue Base RR from Japan

C.I. Fast Blue Base RR is a sulfonamide fast color base used to produce brilliant blue shades in azo dyeing processes for cellulosic fibers. It diazotizes readily and couples efficiently with beta-naphthol for wash-fast colorations. Falls under HTS 2935.90.20.00 as specified fast color salt/base of sulfonamides.

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

• Provide manufacturer's chemical structure data for Customs verification; store in cool, dry conditions to maintain diazotization capability; avoid bulk packaging over 25kg without stabilizers per safety transport note (f)