C.I. Fast Blue Base B
C.I. Fast Blue Base B is an aromatic amine diazotized salt serving as a fast color base for brilliant blue azo pigments in ink and paint manufacturing. Its diazonium structure enables coupling reactions for colorfast applications. Falls under HTS 2927.00.30.00 as a fast color base diazo compound.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when coupled and formulated as pigment preparation
Synthetic organic pigments of azo type classify in Chapter 32, not as diazo intermediates.
If classified by amine functional group rather than diazo
o-/m-/p-Anilines and derivatives may take precedence if not emphasizing diazo function.
If for industrial bulk packaging vs dye intermediate
Heterocyclic compounds with diazo functionality sometimes classified in heading 2933.
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Import Tips & Compliance
• Provide technical data sheets proving diazonium salt composition for proper Chapter 29 classification
• Check for stabilizer content; excess additives may shift to heading 3824 chemical preparations
• Label shipments with UN numbers if hazardous; fast color bases often require dangerous goods declaration
Related Products under HTS 2927.00.30.00
C.I. Fast Red Base KB
C.I. Fast Red Base KB is a diazo compound used as a fast color base in the production of azo dyes for textile printing and coloration. It reacts with couplers to form stable, lightfast colorants on fabrics. Classified under HTS 2927.00.30.00 as a fast color base per Chapter 29 diazo compounds.
Fast Yellow Base GC Salt
Fast Yellow Base GC Salt is a stabilized diazonium salt used as a fast color salt for producing yellow azo dyes in leather and paper coloration. It provides excellent fastness to light and washing in final dye applications. HTS 2927.00.30.00 covers this as a fast color salt diazo compound.
Fast Black Base E Salt
Fast Black Base E Salt is a double diazo fast color salt producing deep black shades for wool and silk dyeing with excellent wet fastness. Used in high-end textile applications requiring durability. HTS 2927.00.30.00 classification for fast color salts.
C.I. Fast Orange Base 2G
C.I. Fast Orange Base 2G serves as a diazo fast color base for brilliant orange shades in direct and discharge printing on cellulosic fabrics. Offers good leveling and fastness properties. Falls under HTS 2927.00.30.00 as fast color base.
Fast Green Base BN Salt
Fast Green Base BN Salt is a stabilized diazonium fast color salt yielding brilliant green dyes for acetate and polyamide fibers. Provides excellent sublimation fastness. Classified HTS 2927.00.30.00 as fast color salt.
Fast Brown Base N Salt
Fast Brown Base N Salt double diazo fast color salt for producing fast brown shades on wool and blends. High fastness to milling and potting. HTS 2927.00.30.00 fast color salt.