Description

Direct Black 154 is a high-performance, synthetic diazo dye belonging to the direct dye classification. It is valued for its excellent substantivity to cellulosic fibers, providing deep, rich black shades with good wash and light fastness properties. This dye is essential for manufacturers in the textile industry seeking efficient and economical coloration of cotton, viscose, and other plant-based materials.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, rayon, linen, and other cellulosic fibers.
• Leather Coloring: Used for dyeing leather goods, providing uniform and deep black coloration.
• Paper Industry: Employed in the coloring of paper and paperboard products.
• Ink Formulation: A component in the manufacture of certain types of inks for specialized applications.
• Wood Staining: Can be used for staining wood to achieve dark, opaque finishes.

Basic Information

Product Name	Direct Black 154
CAS No.	37372-50-2
Molecular Formula	C34H25N9Na4O13S4
Molecular Weight	1023.87 g/mol
Synonyms	Direct Black 154; C.I. Direct Black 154; Direct Black BN; Direct Black BNL; Direct Black G; Direct Black GX; Direct Black RX; Atul Direct Black 154; Amanil Black 154
EINECS	253-512-5

Quality Control

Our Direct Black 154 is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot is tested against stringent internal specifications for key parameters such as color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) detailing these results is provided with every 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	Black to Bluish-Black Powder
Identification	Conforms (IR / HPLC)
Color Strength	100 ± 3% (Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Fastness Properties	To be specified per grade

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