Description

Indigo Blue (Powder) is a synthetic organic pigment renowned for its deep, rich blue color and excellent colorfastness. This high-performance colorant is essential for achieving durable and vibrant coloration in a wide range of industrial materials. It is a critical raw material for manufacturers in the textile, ink, and plastics industries seeking consistent, high-quality blue pigments for their products.

Application

• Textile Dyeing and Printing: Primary application for dyeing denim (jeans), yarns, and fabrics, providing the classic indigo blue shade with good wash and light fastness.
• Industrial Inks: Used in the formulation of printing inks for packaging, publications, and security printing due to its color strength and stability.
• Plastics and Masterbatch Coloring: Imparts a stable blue color to polymers such as PVC, polyolefins, and engineering plastics during manufacturing.
• Paints and Coatings: Employed in the production of industrial paints, automotive finishes, and artist's colors where a permanent blue pigment is required.
• Leather Finishing: Used for dyeing leather goods, providing deep and uniform coloration.
• Paper Coloring: Applied in specialty paper production for colored papers and boards.

Basic Information

Product Name	Indigo Blue (Powder)
CAS No.	12626-73-2
Molecular Formula	C16H10N2O2
Molecular Weight	262.27 g/mol
Synonyms	Indigo; Vat Blue 1; C.I. 73000; Indigotin; 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one; Synthetic Indigo; Indigo Carmine (note: often refers to the sulfonated, water-soluble form); C.I. Pigment Blue 66
EINECS	235-740-6

Quality Control

Our Indigo Blue (Powder) is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing including purity assay, shade strength, and particle size analysis. A Certificate of Analysis (COA) detailing specific lot results is provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 96.0%
Color Strength	98 - 102% (vs. Standard)
Moisture Content	≤ 1.0%
Ash Content	≤ 0.5%
Particle Size (95% <)	45 µm
Solubility	Insoluble in water; Soluble in concentrated sulfuric acid

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.