Description

Direct Yellow 86 is a high-performance, water-soluble anionic dye belonging to the direct dye class, identified by CAS No. 50925-42-3. It is valued for its strong affinity to cellulosic fibers, providing excellent build-up and good wash fastness properties. This dye is essential for manufacturers in the textile industry seeking efficient and vibrant coloration for cotton, viscose, and other natural fibers.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers in exhaust and continuous dyeing processes.
• Paper Coloring: Used for tinting and dyeing paper pulp to produce colored papers and boards.
• Leather Finishing: Employed in the dyeing of leather goods to achieve consistent and deep yellow shades.
• Ink Formulation: A colorant component in the manufacture of certain types of inks, including those for flexographic and inkjet applications.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	Direct Yellow 86
CAS No.	50925-42-3
Molecular Formula	C29H19N5Na2O8S2
Molecular Weight	695.66 g/mol
Synonyms	Direct Fast Yellow 5G; C.I. Direct Yellow 86; Direct Yellow 5G; Amanil Fast Yellow 5G; Atul Direct Fast Yellow 5G; Pyrazol Yellow 5G; Sirius Supra Yellow 5G; Dinamine Fast Yellow 5G
EINECS	Contact for details

Quality Control

Our Direct Yellow 86 is manufactured under a stringent quality management system. Every batch is tested to ensure consistent strength, shade, and solubility, meeting the specifications required for industrial dyeing applications. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee reliable and reproducible results for your processes.

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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Assay (Dye Content)	Min. 95%
Moisture Content	Max. 5.0%
Water Insoluble Matter	Max. 0.5%
Shade	Conforms to Standard
Solubility in Water	Conforms

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