Description

C.I.Direct Yellow 68 is a high-performance, water-soluble direct dye belonging to the azo chemical class. This product is valued for its strong and bright yellow hue, offering excellent substantivity to cellulosic fibers like cotton and viscose. It is a critical component for dye houses and textile manufacturers seeking reliable, cost-effective coloring solutions for fabrics, yarns, and paper. The compound is identified by CAS No. 61725-07-3.

Application

This versatile direct dye is engineered for a range of industrial coloring applications, primarily within the textile sector. Its key uses include:

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers to achieve a bright yellow shade.
• Paper Coloring: Used in the tinting and surface coloring of paper and paperboard products.
• Leather Finishing: Employed in the dyeing of leather goods to provide consistent and vibrant yellow coloration.
• Ink Formulation: Serves as a colorant in the manufacture of certain types of inks.
• Biological Staining: May be utilized as a histological stain in laboratory settings.

Basic Information

Product Name	C.I. Direct Yellow 68
CAS No.	61725-07-3
Molecular Formula	C29H19N5Na2O8S2
Molecular Weight	683.60 g/mol
Synonyms	Direct Yellow 68; C.I. 13920; Amanil Fast Yellow G; Atul Direct Fast Yellow G; Chloramine Fast Yellow G; Direct Fast Yellow G; Dinamine Fast Yellow G; Sirius Supra Yellow G; Solophenyl Yellow AGL; Solar Yellow G
EINECS	262-946-9

Quality Control

Our production of C.I. Direct Yellow 68 adheres to stringent quality management protocols. Every batch is tested against established specifications for color strength, shade, solubility, and impurity profiles to ensure batch-to-batch consistency and performance reliability. Certificates of Analysis (COA) documenting purity, physical properties, and conformance are available upon request to support your quality assurance 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to Standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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