Description

C.I. Reduced Vat Blue 43 is a high-purity, reduced form vat dye intermediate essential for producing brilliant and durable blue shades. This compound matters for its role in creating high-performance pigments and dyes with excellent fastness properties, including superior light and wash fastness. Industries such as textile manufacturing, specialty inks, and high-grade plastics rely on this key intermediate for consistent, vibrant coloration in demanding applications.

Application

• Primary intermediate for the synthesis of Vat Blue 43 pigment and dye.
• Manufacture of high-fastness dyes for cotton, wool, and other natural fiber dyeing and printing.
• Production of colorants for industrial inks, including security and specialty printing applications.
• Coloration of plastics and synthetic fibers requiring excellent stability.
• Used in the formulation of advanced organic pigments for coatings and paints.
• Research and development of novel photovoltaic or electronic materials where specific chromophores are required.

Basic Information

Product Name	C.I. Reduced Vat Blue 43
CAS No.	85737-02-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Vat Blue 43, Reduced; C.I. 53630; C.I. Vat Blue 43 (reduced form); Indanthren Blue CLB Reduced; Caledon Blue RC Reduced; Durindone Blue BCL Reduced; 16,17-Dimethoxydinaphtho[2,3-a:2',3'-h]phenazine-5,9,14,18-tetrone (reduced form)
EINECS	Contact for details

Quality Control

Our C.I. Reduced Vat Blue 43 is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise chemical and physical specifications for consistent performance in downstream synthesis. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and relevant parameters is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Dark Blue to Black Powder or Crystals
Identification (IR)	Conforms to Standard
Purity (HPLC)	≥ 95% (Typical)
Moisture Content	≤ 2.0%
Ash Content	≤ 1.0%

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