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dye pigment intermediates
1,4-Diaminoanthraquinone
CAS: 128-95-0
1,4-Diaminoanthraquinone is a vivid violet disperse dye intermediate and a key building block for solvent dyes used in plastics, waxes, and printing inks. Its extended chromophore system produces deep violet-blue hues with high extinction coefficients. As a disperse dye, it dyes polyester and cellulose acetate directly to brilliant violet shades with good sublimation fastness. Chemzip supplies this intermediate to dye and specialty ink manufacturers.
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1,4-Dihydroxynaphthalene
CAS: 571-60-8
1,4-Dihydroxynaphthalene is a naphthalenediol used as a key intermediate in the synthesis of vat dyes, particularly naphthalene-based quinone vat dyes that exhibit excellent lightfastness and wash fastness on cotton. It is also used in the preparation of anthraquinone derivatives and as a building block for organic semiconductor materials. Chemzip offers this specialty intermediate for high-performance vat dye and organic materials manufacturing.
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1-Aminoanthraquinone
CAS: 82-45-1
1-Aminoanthraquinone is a key anthraquinone amine derivative used as an intermediate in the synthesis of disperse dyes for polyester and acetate fibers, as well as in the preparation of reactive anthraquinone dyes and vat dye intermediates. Its orange-red hue and strong absorption in the visible spectrum make it a valuable chromophore building block. Chemzip offers consistent-quality 1-aminoanthraquinone to disperse dye manufacturers worldwide.
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2-Amino-4-Chlorophenol
CAS: 89-95-2
2-Amino-4-chlorophenol is a bifunctional aromatic compound containing both amino and hydroxyl groups, making it an excellent azo dye coupling component as well as a diazotizable intermediate. It is used to produce reactive and direct dyes with red, bordeaux, and brown shades exhibiting good wash fastness on cotton. Chemzip supplies this intermediate to specialty dye manufacturers worldwide.
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2-Aminoanthraquinone
CAS: 117-79-3
2-Aminoanthraquinone is the 2-position isomer of aminoanthraquinone, serving as an intermediate for anthraquinone-based acid dyes and reactive dyes with blue and grey shades for protein and polyamide fibers. Its amino group at position 2 confers distinct electronic and steric properties compared to the 1-isomer, enabling different dye hue profiles. Chemzip supplies 2-aminoanthraquinone for specialty dye and organic pigment synthesis.
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2G Acid (2-Naphthylamine-5,7-Disulfonic Acid)
CAS: 93-00-5
2G Acid (2-naphthylamine-5,7-disulfonic acid) is a disulfonated naphthalamine that functions as a diazo component in direct and reactive dye synthesis, primarily for blue, grey, and black shades on cotton. Its two sulfonic groups at positions 5 and 7 provide high water solubility and strong fiber affinity, producing dyes with excellent leveling and wash fastness properties. Chemzip supplies 2G Acid for complex multi-component dye formulations.
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Alpha Copper Phthalocyanine (PB 15:1)
CAS: 147-14-8
Alpha copper phthalocyanine (Pigment Blue 15:1) is the reddish-blue phase of CuPc, stabilized with small amounts of phase-directing agents to prevent conversion to the beta polymorph. It is widely used in printing inks, particularly gravure and offset inks where a slightly reddish undertone in blue is desired. Chemzip supplies PB 15:1 in standardized grades suitable for waterborne and solventborne ink and coating systems.
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Alpha-Naphthol (1-Naphthol)
CAS: 90-15-3
Alpha-naphthol (1-naphthol) is an isomeric phenolic compound used as a coupling component and building block in dye synthesis, pharmaceutical synthesis, and agrochemical production. As a dye intermediate, it provides different coupling selectivity and hue characteristics compared to beta-naphthol, enabling complementary shade ranges including violet and brown azo dyes. Chemzip supplies high-purity alpha-naphthol for industrial and specialty chemical applications.
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Aniline
CAS: 62-53-3
Aniline is the fundamental aromatic amine intermediate used in the synthesis of azo dyes, reactive dyes, and a wide range of organic pigments. As a primary building block for the dye and pigment industry, it undergoes diazotization reactions to form diazonium salts that couple with various coupling components. Chemzip supplies industrial-grade aniline meeting strict purity specifications for dyestuff manufacturers worldwide.
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Anthraquinone
CAS: 84-65-1
Anthraquinone is the parent compound and primary intermediate for a large family of vat dyes, reactive dyes, and disperse dyes based on the anthraquinonoid chromophore system. It is also used as a pulp cooking catalyst in the paper industry and as a starting material for the synthesis of amino- and hydroxy-anthraquinone derivatives. Chemzip offers technical-grade anthraquinone for dye and paper chemical manufacturers.
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Azo Condensation Red (Pigment Red 144)
CAS: 5280-78-4
Azo Condensation Red (Pigment Red 144) is a disazo condensation pigment providing a bluish-red to pure red hue with significantly higher fastness properties than conventional diazo pigments, including excellent lightfastness, heat stability, and bleed resistance. It bridges the performance gap between standard azo reds and expensive polycyclic pigments, making it ideal for demanding automotive, industrial, and packaging applications. Chemzip supplies PR 144 to meet high-performance colorant requirements.
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Benzimidazolone Yellow (Pigment Yellow 151)
CAS: 31837-42-0
Benzimidazolone Yellow (Pigment Yellow 151) is a monoazo benzimidazolone pigment with a greenish-yellow hue that combines the transparency of azo chemistry with the superior fastness of the benzimidazolone ring, offering exceptional lightfastness and heat stability. It is widely used in automotive, industrial, and printing ink applications that demand both color quality and long-term performance. Chemzip supplies PY 151 for premium coating and ink formulations.
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