dye pigment intermediates

J-Acid (6-Amino-1-Naphthol-3-Sulfonic Acid)

CAS: 87-02-5

J-Acid is a key naphthalene-based coupling component used in the synthesis of red, bordeaux, and violet azo dyes for textile, leather, and paper applications. Unlike H-Acid, it carries only one sulfonic acid group, giving it different coupling selectivity and enabling dyes with distinct hue profiles. Chemzip supplies high-purity J-Acid to dye manufacturers seeking consistent quality for specialty color formulations.

dye pigment intermediates

K-Acid (8-Amino-1-Naphthol-5-Sulfonic Acid)

CAS: 119-40-4

K-Acid (8-amino-1-naphthol-5-sulfonic acid) is a naphthalene-based dye intermediate used in the synthesis of azo dyes with red and bordeaux hues, particularly for chrome and metal-complex dye systems that exhibit excellent lightfastness on wool and leather. Its structural isomerism relative to H-Acid provides complementary reactivity for dye systems requiring high fastness to light and perspiration. Chemzip supplies K-Acid to specialty dye manufacturers.

dye pigment intermediates

Leuco-Indigo (Soluble Indigo / Indigo White)

CAS: 482-89-3

Leuco-indigo, also known as indigo white, is the reduced, soluble form of indigo obtained by treating indigo with a reducing agent such as sodium hydrosulfite in an alkaline vat. It is the actual dyeing species in traditional and modern indigo vat dyeing of denim, knit fabrics, and yarn, oxidizing back to insoluble blue indigo within the fiber upon air exposure. Chemzip supplies stabilized leuco-indigo preparations for continuous denim dyeing operations.

dye pigment intermediates

Lithopone (Zinc Sulfide / Barium Sulfate Blend)

CAS: 1345-05-7

Lithopone is a co-precipitated white pigment consisting of approximately 30% zinc sulfide (ZnS) and 70% barium sulfate (BaSO4), widely used as an economical white pigment and filler in interior paints, rubber, plastics, and paper coatings. While less opaque than TiO2, its combination of whiteness, low oil absorption, and inertness makes it a cost-effective partial TiO2 replacement and functional filler. Chemzip supplies standard and high-strength lithopone grades.

dye pigment intermediates

Meta-Nitroaniline (m-NA)

CAS: 99-09-2

Meta-nitroaniline (m-NA) serves as a versatile intermediate for yellow and greenish-yellow azo dyes, as well as a building block for pharmaceuticals and agrochemicals. Its meta-substitution pattern allows coupling reactions that are difficult to achieve with para or ortho isomers, making it valuable for specialty dye formulations. Chemzip provides consistent-quality m-NA for dye and chemical manufacturers.

dye pigment intermediates

Meta-Phenylenediamine (MPD)

CAS: 108-45-2

Meta-phenylenediamine (MPD) is a difunctional aromatic amine used as a developer in oxidative dye systems, as an intermediate for direct and reactive dyes, and as a monomer for polyamide and polyimide polymers. Its meta-substitution provides distinct reactivity compared to the para isomer, enabling unique color formulations in hair dye and textile dye applications. Chemzip offers technical and refined grades with reliable batch-to-batch consistency.

dye pigment intermediates

Mixed Metal Oxide Nickel Rutile Brown Pigment

Mixed Metal Oxide (MMO) Nickel Rutile Brown is a high-performance inorganic pigment produced by calcining a mixture of TiO2, nickel oxide, and antimony trioxide at high temperature to form a rutile crystal lattice in which Ni and Sb ions replace Ti ions, yielding a clean, warm brown hue. These MMO pigments offer extraordinary stability to heat, light, chemicals, and weathering, making them the preferred choice for demanding exterior, automotive, and high-temperature applications. Chemzip supplies MMO brown in standard and coarse grades.

dye pigment intermediates

Ortho-Nitroaniline (o-NA)

CAS: 88-74-4

Ortho-nitroaniline (o-NA) is an important aromatic amine intermediate primarily used in the synthesis of orange and red azo dyes and as a precursor for pesticide and pharmaceutical production. Its ortho-substitution pattern imparts unique coupling characteristics that yield vivid orange hues in reactive and direct dyes. Chemzip supplies high-purity o-NA meeting international dyestuff industry standards.

dye pigment intermediates

Ortho-Toluidine (o-Toluidine)

CAS: 95-53-4

Ortho-toluidine is an aromatic amine intermediate widely used in the synthesis of reactive dyes, especially turquoise and blue reactive dyes applied to cellulosic fibers. The methyl group at the ortho position imparts steric effects that influence coupling reactions and the resulting dye's fastness properties. Chemzip supplies technical-grade o-toluidine for reactive and azo dye manufacturers.

dye pigment intermediates

Para-Chloroaniline (p-CA)

CAS: 106-47-8

Para-chloroaniline is a halogenated aromatic amine that serves as a diazonium-forming component in the synthesis of fast, light-fast azo dyes for textiles, leather, and printing inks. The chloro substituent enhances the electron-withdrawing character, producing azo dyes with improved lightfastness compared to unsubstituted aniline derivatives. Chemzip provides high-purity p-CA to dye and pigment manufacturers globally.

dye pigment intermediates

Para-Nitroaniline (p-NA)

CAS: 100-01-6

Para-nitroaniline (p-NA) is a key diazo component in the manufacture of azo dyes, particularly fast yellow and orange dyes used in textiles, leather, and paper. It undergoes diazotization at low temperature and couples with naphthalenic and phenolic components to produce brilliant shades. Chemzip offers technical and refined grades to meet various manufacturing requirements.

dye pigment intermediates

Para-Phenylenediamine (PPD)

CAS: 106-50-3

Para-phenylenediamine (PPD) is a critical aromatic diamine used extensively as an oxidative hair dye intermediate and as a bifunctional building block for high-performance azo dyes, engineering polymers, and rubber antiozonants. Its two amino groups enable unique dye structures including bis-azo dyes and reactive dyes with excellent wash fastness. Chemzip supplies PPD in technical and refined grades for the dye and cosmetic industries.

dye pigment intermediates

Perylene Maroon (Pigment Red 179)

CAS: 5521-31-3

Perylene Maroon (Pigment Red 179) is a high-performance perylene diimide pigment offering a deep maroon-red hue with outstanding lightfastness, heat stability, and chemical resistance in virtually all media. Its exceptional durability makes it the preferred red pigment in automotive coatings, high-temperature plastics, and industrial coatings requiring long-term exterior performance. Chemzip supplies PR 179 in standard and high-transparency grades.

dye pigment intermediates

Prussian Blue (Iron Blue Pigment)

CAS: 14038-43-8

Prussian Blue (Iron Blue, CI Pigment Blue 27) is a classic inorganic blue pigment based on iron (III) hexacyanoferrate (II), offering a deep, greenish-blue hue with high tinting strength and good alkali resistance when properly formulated. It is used in printing inks, architectural paints, laundry bluing, and artist paints. Chemzip supplies iron blue in standard and high-tinting-strength grades for ink and coating applications.

dye pigment intermediates

Quinacridone Red / Magenta (Pigment Violet 19)

CAS: 1047-16-1

Quinacridone Magenta (Pigment Violet 19, gamma phase) is a vivid bluish-red to magenta high-performance pigment derived from the quinacridone chromophore, offering exceptional lightfastness, bleed resistance, and heat stability. It is the primary magenta pigment in high-quality printing inks, automotive coatings, and fine arts applications. Chemzip provides this pigment in standardized grades for demanding color-critical applications.

dye pigment intermediates

Quinacridone Violet (Pigment Violet 19 / PR 122)

CAS: 980-26-7

Quinacridone Violet (PR 122 / PV 19 depending on crystal modification) is a high-performance organic pigment derived from the linear quinacridone chromophore, offering vivid violet-magenta hues with outstanding lightfastness, heat stability, and chemical resistance. It is widely used in automotive coatings, high-quality printing inks, and plastics where color durability is critical. Chemzip supplies quinacridone violet in both standard and transparent grades.

dye pigment intermediates

R-Acid (3-Hydroxy-2-Naphthoic Acid)

CAS: 148-75-4

R-Acid, also known as 3-hydroxy-2-naphthoic acid (BON acid), is a classic azo coupling component widely used in the production of fast, insoluble azo pigments and printing pastes for textiles and packaging. It couples with diazonium salts at the 1-position to yield high chroma red, orange, and maroon azo colors extensively used in offset and flexographic printing inks. Chemzip supplies R-Acid to pigment and ink manufacturers requiring consistent coupling performance.

dye pigment intermediates

Resorcinol (1,3-Dihydroxybenzene)

CAS: 108-46-3

Resorcinol is a dihydric phenol serving as a coupling component in the synthesis of fluorescent dyes (fluorescein, eosin), azo dyes, and as a key raw material for resorcinol-formaldehyde resin used in tire cord adhesion. In the dye and colorant industry, it enables the synthesis of brilliant yellow and orange fluorescent dyes used in highlighters, safety garments, and paper. Chemzip supplies technical-grade resorcinol for dyestuff and polymer applications.

dye pigment intermediates

Schaeffer's Acid (2-Naphthol-6-Sulfonic Acid)

CAS: 93-01-6

Schaeffer's Acid is a naphthol monosulfonic acid coupling component used in the synthesis of scarlet, red, and orange azo dyes for textile and leather applications. Its hydroxyl group at position 2 and sulfonic acid at position 6 create a coupling component that gives brilliant red shades with good dyeing affinity. Chemzip offers high-quality Schaeffer's Acid for azo dye producers seeking vivid red color formulations.

dye pigment intermediates

Sulfanilic Acid

CAS: 121-57-3

Sulfanilic acid (4-aminobenzenesulfonic acid) is a water-soluble aromatic amino sulfonic acid that serves as both a diazo component and coupling component in the manufacture of water-soluble direct, acid, and reactive azo dyes. Its sulfonic acid group imparts water solubility to the resulting dyes and improves affinity for protein and polyamide fibers. Chemzip offers industrial-grade sulfanilic acid with consistent quality for dye manufacturers.

dye pigment intermediates

Synthetic Indigo (Indigo Pure)

CAS: 482-89-3

Synthetic indigo is the industrially manufactured form of the classic blue vat dye, produced via the Heumann-Pfleger synthesis from aniline and chloroacetic acid. It is the dominant blue colorant for denim fabric worldwide, applied by vat dyeing to impart the characteristic fading behavior that defines denim aesthetics. Chemzip supplies synthetic indigo in granular and powder forms to denim mills, yarn dyers, and textile chemical distributors.

dye pigment intermediates

Thioindigo (Vat Red 41)

CAS: 522-75-8

Thioindigo is a sulfur-analogue of indigo in which the NH groups are replaced by sulfur atoms, producing a brilliant red vat dye with excellent lightfastness and chlorine fastness. It is used to dye cotton in vivid red shades that retain color depth after repeated washing and exposure to light. Chemzip supplies thioindigo for high-quality cotton dyeing and specialty pigment applications requiring outstanding durability.

dye pigment intermediates

Titanium Dioxide Anatase

CAS: 1317-70-0

Titanium Dioxide Anatase is the softer, more photoreactive crystal form of TiO2, providing excellent whiteness and brightness primarily in interior coatings, paper, fiber, and cosmetic applications where the higher photocatalytic activity of rutile is not required. Its finer crystal structure and lower abrasiveness make it suitable for paper delustering and textile fiber spinning applications. Chemzip supplies anatase TiO2 for paper, fiber, and specialty coating manufacturers.

dye pigment intermediates

Titanium Dioxide Rutile R902 (Coating Grade)

CAS: 13463-67-7

Titanium Dioxide Rutile R902 is a surface-treated, coating-grade rutile TiO2 pigment offering outstanding opacity, whiteness, and durability in waterborne and solventborne paints, coatings, and plastics. Its silica-alumina surface treatment enhances durability, dispersibility, and chalk resistance in exterior architectural coatings. Chemzip supplies R902-equivalent TiO2 with consistent quality to paint manufacturers and formulators worldwide.