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Leuco
(1,4-Diaminoanthraquinone)

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Leuco
(1,4-Diaminoanthraquinone)

Leuco (1,4-Diaminoanthraquinone) is a high-value dye intermediate used for manufacturing reduced dyes, disperse dyes, anthraquinone-based colors, and specialty pigments. Known for its deep chromatic strength and chemical stability, it supports a wide range of industrial dyeing processes.

Leuco offers strong tinctorial value, uniform particle size, and excellent compatibility with multi-step dye synthesis. It is used in creating turquoise dyes, violet shades, green dyes, and various disperse dye formulations. Its stable performance under reduction conditions makes it a preferred intermediate.

Leuco plays a crucial role in producing reduced Grey BG, Green BB, Brown BR, and other anthraquinone dye derivatives. Its ability to generate vivid, durable shades makes it indispensable for textile dyeing, polyester coloring, inks, paints, and specialty industrial colorants.

Chemical Information

  • Chemical Name: 1,4-Diaminoanthraquinone (Leuco)
  • CAS No: 5327-72-0
  • Molecular Formula: C14H12H202
  • Molecular Weight: 240.26

Physical Properties

  • Appearance: Dark green crystals / shining brown flakes
  • DAAQ -Leuco massfraction: 95.0
  • DAAQ -Leuco Purity HPLC/%  : 97.50
  • 1-Amino-4-hydroxyyanthraquinone (HPCL)%< : 1.00
  • Oxidized product-DAAQ (HPCL) % < : 1.20
  • Moisture Content: 0.50
  • Ash Content: 0.50
  • pH: 7–9

Related Dyes & Intermediates Produced From Leuco

Derived Dye ShadesDownstream Intermediates
Turquoise seriesReduced anthraquinone derivatives
Violet series 
Green seriesDisperse dye blending components
Brown and Grey reduced dyes 

Uses / Applications :

  • Reduced Grey BG
  • Reduced Green BB
  • Reduced Brown BR
  • Disperse Violet 26 and 28
  • Turquoise dyes
  • Anthraquinone derivatives
  • Specialty printing inks
  • Plastic and fiber colorants

Packing Details

  • 25 kg Woven Bags
  • 500 kg Jumbo Bags
  • 25 kg Fibre Drums
  • Custom packing available as per customer requirement

Why Choose Our Quinizarin?

  • High tinctorial value with excellent purity.
  • Suitable for multiple reduced dye formulations.
  • Stable performance under reduction conditions.
  • Preferred intermediate for textile, plastic, and ink industries.

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