Description

Acid Yellow 246 is a synthetic organic dye belonging to the azo chemical class, valued for its bright, stable yellow hue. This product is engineered to deliver consistent color strength and excellent fastness properties in demanding industrial applications. It is primarily utilized by manufacturers in the textile, leather, and specialty ink industries seeking reliable and high-performance coloring agents.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, including wool, silk, and nylon, offering good wash and light fastness.
• Leather Finishing: Used for coloring leather goods, providing vibrant and uniform shades with good adhesion.
• Ink Formulation: A key component in the production of specialty inks for packaging, security printing, and other industrial marking applications.
• Paper Staining: Employed for tinting paper products where a specific yellow color is required.
• Plastics and Polymers: Can be used as a colorant for certain types of plastics and polymeric materials.
• Biological Staining (Research Grade): Potential use as a histological stain in laboratory settings for specialized grades.

Basic Information

Product Name	Acid Yellow 246
CAS No.	119822-74-1
Molecular Formula	C23H21N5O6S2·2Na
Molecular Weight	621.56 g/mol
Synonyms	Acid Yellow 246; C.I. Acid Yellow 246; 2,7-Naphthalenedisulfonic acid, 5-[[4-[(2,5-dichlorophenyl)azo]-3-hydroxy-2,7-disulfo-1-naphthalenyl]azo]-4-hydroxy-3-[(4-nitrophenyl)azo]-, sodium salt (1:?); Lanasyn Yellow 2GL; Supranol Yellow 4GL; Telon Yellow A-2GL; Acid Leather Yellow A-2R; Dermacid Yellow 2GL
EINECS	Contact for details

Quality Control

Our Acid Yellow 246 is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets defined specifications for color value, strength, purity, and solubility. A comprehensive Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee traceability and compliance with your quality 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Conforms
pH (1% Solution)	6.0 - 8.0
Ash Content	Max. 30.0%

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