Description

Direct Yellow 120 is a high-performance, water-soluble disazo direct dye belonging to the benzidine derivative class. It is valued for its excellent substantivity to cellulosic fibers, providing bright and level shades of yellow with good fastness properties. This dye is essential for manufacturers in the textile industry seeking reliable and cost-effective coloring solutions for cotton, viscose, and other natural fibers. Its consistent quality ensures reproducible results in demanding industrial dyeing processes.

Application

• Textile Dyeing: Primary application for exhaust and continuous dyeing of cotton, rayon, linen, and other cellulosic fabrics.
• Paper Coloring: Used for tinting and dyeing paper pulp to produce colored papers and boards.
• Leather Finishing: Imparts yellow coloration to leather goods in the tanning industry.
• Ink Formulation: A colorant component in the manufacture of certain types of inks.
• Biological Staining: Potential use as a histological stain in laboratory settings.

Basic Information

Product Name	Direct Yellow 120
CAS No.	12222-63-8
Molecular Formula	C36H26N10Na4O13S4
Molecular Weight	1066.9 g/mol
Synonyms	Direct Fast Yellow 7GFF; C.I. Direct Yellow 120; Direct Yellow 7GFF; Pontamine Fast Yellow 7GFF; Sirius Supra Yellow 7GFF; Direct Yellow GR; Amanil Fast Yellow 7GFF; Atul Direct Fast Yellow 7GFF
EINECS	Contact for details

Quality Control

Our Direct Yellow 120 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for shade, strength, solubility, and fastness properties. A Certificate of Analysis (COA) detailing purity, physical properties, and performance characteristics is provided with each shipment to guarantee consistency and reliability for your production.

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	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade on Cotton	Conforms to Standard
Fastness Properties	To Light, Washing, and Perspiration (Typical values available)

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