Description

C.I. Vat Blue 17 is a high-performance, synthetic vat dye belonging to the indanthrone chemical class, valued for its exceptional color fastness and deep blue hue. This pigment is critical for applications requiring superior resistance to light, washing, and chemical degradation. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries seeking durable and vibrant coloration.

Application

• Textile Dyeing and Printing: For cotton, wool, and viscose, providing excellent wash and light fastness.
• Pigment for Industrial Coatings: Used in the formulation of high-durability paints and coatings.
• Ink Manufacturing: A key component in producing high-quality printing inks, including for security and packaging applications.
• Plastics and Masterbatch Coloring: For coloring polyolefins and other polymers where heat stability is required.
• Paper Coloration: Used in specialty paper products requiring color permanence.
• Leather Dyeing: Provides rich, fast colors for finished leather goods.

Basic Information

Product Name	C.I. Vat Blue 17
CAS No.	12271-05-5
Molecular Formula	C28H14N2O4
Molecular Weight	442.42 g/mol
Synonyms	Vat Blue 17; C.I. 59815; Indanthrene Blue RS; Indanthrone; 6,15-Dihydro-5,9,14,18-anthrazinetetrone; Clariant Blue RS; Caledon Blue RS; Cibanone Blue RS; Nihonthrene Blue RS; Ponsol Blue RS; Tinon Blue RS
EINECS	235-545-8

Quality Control

Our C.I. Vat Blue 17 is manufactured under a strict quality management system. Each batch is tested to ensure it meets precise specifications for color strength, shade, and chemical purity. Certificates of Analysis (COA) detailing key parameters such as assay, insolubles, and fastness properties are available upon request to support your quality assurance protocols.

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. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Within Agreed Limits
Moisture Content	≤ 1.0%
Water Soluble Matter	≤ 1.5%
Particle Size (Passing 80 mesh)	≥ 95%
Fastness to Light (Standard Scale)	≥ 7
Fastness to Washing	≥ 4-5

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