Description

Vat Blue 43 is a high-performance, synthetic organic pigment belonging to the vat dye class, known for its excellent color fastness and chemical stability. This compound is essential for applications requiring durable, long-lasting blue coloration that resists fading from light, washing, and chemical exposure. It is a critical raw material for industrial manufacturers in the textile, plastics, and specialty coatings sectors seeking superior quality and reliability in their colorant systems.

Application

• Textile Dyeing and Printing: Primarily used for dyeing cotton, wool, and other natural fibers, providing deep, wash-fast blue shades.
• Plastics and Masterbatch Coloring: Imparts stable blue coloration to polymers like PVC, polyolefins, and engineering plastics.
• Industrial Coatings and Paints: Employed in the formulation of high-durability paints, automotive finishes, and industrial coatings.
• Paper Coloring: Used for specialty paper products requiring high lightfastness.
• Leather Finishing: Applied in the dyeing of leather goods for consistent and durable color.
• Ink Manufacturing: A key pigment for security inks, packaging inks, and other high-performance printing inks.

Basic Information

Product Name	Vat Blue 43
CAS No.	1327-79-3
Molecular Formula	C28H12N2O4
Molecular Weight	440.41 g/mol
Synonyms	Vat Blue 43; C.I. 53630; C.I. Vat Blue 43; Indanthren Blue CLB; Caledon Blue XRC; Cibanone Blue 2R; Nihonthrene Blue CLB; 16,17-Dihydrodinaphtho[2,3-a:2',3'-h]phenazine-5,9,14,18-tetrone
EINECS	215-524-0

Quality Control

Our Vat Blue 43 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Quality is verified through a series of analytical tests including identification, assay, and impurity profiling. Certificates of Analysis (COA) detailing all specifications and test results are 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)	≥ 96.0%
Color Strength	100 ± 5% (vs. Standard)
Shade	Conforms
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%
Particle Size (95% Pass)	≤ 5 μm

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