Description

Vat Blue 66 is a high-performance vat dye belonging to the anthraquinone class, known for its excellent color fastness and stability. This pigment is valued for its ability to produce deep, vibrant blue shades that are highly resistant to light, washing, and chemical degradation. It is primarily used by manufacturers in the textile industry for dyeing and printing cellulosic fibers like cotton, as well as in specialized applications for coloring paper and leather.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, and other cellulosic fibers to achieve wash-fast and light-fast blue colors.
• Textile Printing: Used in printing pastes for fabrics, providing sharp and durable color definition.
• Paper Coloring: Imparts a stable blue color to specialty papers, including security papers and decorative stocks.
• Leather Finishing: Employed in the dyeing of leather goods where color durability is essential.
• Pigment Preparation: Can be used as a base for manufacturing high-quality organic pigments and colorants.

Basic Information

Product Name	Vat Blue 66
CAS No.	57456-24-3
Molecular Formula	C28H14N2O4
Molecular Weight	442.42 g/mol
Synonyms	C.I. Vat Blue 66; Vat Blue 66; C.I. 73075; 8,16-Pyranthrenedione, 5,10-dihydro-5,10-dioxo-; Cibanone Blue 3R; Indanthren Blue CL-B; Caledon Blue 3R; Navinon Blue 3R
EINECS	Contact for details

Quality Control

Our Vat Blue 66 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Quality is verified through comprehensive testing including identification, purity assay, and shade strength evaluation against industry standards. A Certificate of Analysis (COA) detailing all specifications is provided with each shipment to guarantee compliance with your technical requirements.

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)	≥ 95.0%
Shade Strength	100 ± 3%
Moisture Content	≤ 5.0%
Particle Size	Pass through 80 mesh

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