Fast Black Base N
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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If other synthetic organic coloring intermediates
Bases primarily functioning as dyes rather than pure chemical compounds shift to Chapter 32.
If halogenated aromatic derivatives
Halogenated amino-phenols classify under 2908 if halogen defines the character.
If as stabilized powder with anticaking agents
Additions beyond preservation needs exclude from Chapter 29 per note (f).
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Import Tips & Compliance
• 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)
Related Products under HTS 2922.29.26.00
Fast Red Base B
Fast Red Base B is a chemically defined amino-phenol derivative used as a fast color base in the production of azo dyes, providing stable red hues resistant to light and washing. It falls under HTS 2922.29.2600 as an oxygen-function amino-compound specifically classified as a fast color base, meeting Chapter 29 requirements for separate organic compounds used in dye manufacturing.
Fast Blue Base RS
Fast Blue Base RS is an amino-naphthol ether compound serving as a diazo component for brilliant, lightfast blue dyes in textile printing. Classified under HTS 2922.29.2600 as a fast color base, it is a separate chemically defined organic compound with oxygen-function amino groups, aligning with Chapter 29 heading provisions.
Fast Yellow Base GG
Fast Yellow Base GG, an amino-phenol salt, acts as a stable base for developing yellow azo dyes with excellent fastness properties in leather and paper applications. It qualifies for HTS 2922.29.2600 as a fast color base salt of oxygen-function amino-compounds, per Chapter 29 note on salts classification.
Fast Scarlet Base R
Fast Scarlet Base R is a chemically pure amino-naphthol used in coupling reactions to produce scarlet dyes with superior wash fastness for cotton fabrics. Under HTS 2922.29.2600, it is specified as a fast color base, a separate organic compound fitting Chapter 29's scope for dye intermediates.
Fast Green Base B
Fast Green Base B is an oxygen-function amino-naphthol salt optimized for green azo dye synthesis in synthetic fiber printing. HTS 2922.29.2600 covers it as a fast color base, a salt thereof fitting the heading's scope for chemically defined compounds.
Fast Violet Base 3B
Fast Violet Base 3B serves as a coupler for violet hues in rapid dyeing processes, featuring ether linkages for solubility. As a fast color base under HTS 2922.29.2600, it is an amino-phenol ether within Chapter 29's organic compound definitions.