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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-reacted with coupler to form synthetic dye
Completed azo dyes fall under Chapter 32 synthetic organic coloring matter, not diazo intermediates.
If not specifically a fast color base or salt
Other diazo/azo compounds excluding fast color types classified as 'other' in same heading.
If imported as chemical mixture with solvents
Preparations containing >70% fast color bases may classify as chemical mixtures in Chapter 38.
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Import Tips & Compliance
• Verify chemical purity certificates to confirm classification as fast color base, not finished dye (Chapter 32)
• Include Safety Data Sheets (SDS) and CAS number documentation for customs clearance
• Avoid misclassification as general diazo compounds; specify 'fast color base' in commercial invoice
Related Products under HTS 2927.00.30.00
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.
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.