Description

Acid Yellow 199 is a high-performance, water-soluble monoazo acid dye. It is valued for its bright, clean yellow hue and excellent fastness properties, particularly in demanding applications. This dye is primarily used by manufacturers in the textile and leather industries for dyeing and printing natural and synthetic polyamide fibers, such as wool, silk, and nylon. Its consistent quality ensures reliable coloration and batch-to-batch reproducibility for industrial processes.

Application

• Dyeing of polyamide fibers, including wool, silk, and nylon.
• Printing on textile substrates to achieve vibrant yellow shades.
• Coloration of leather goods, offering good penetration and fastness.
• As a colorant for specialty papers requiring acid dyes.
• Potential use in the coloration of anodized aluminum.
• Formulation of ink-jet inks for textile printing applications.

Basic Information

Product Name	Acid Yellow 199
CAS No.	61931-26-8
Molecular Formula	C21H18N4Na2O8S2
Molecular Weight	580.50 g/mol
Synonyms	Acid Yellow 199; C.I. Acid Yellow 199; Acid Fast Yellow E-3G; Acid Leather Yellow E-3G; Acidol Yellow M-3GL; Amacid Yellow 2G; Derma Yellow G; Nylosan Yellow E-3G; Telon Yellow M-3GL; Yellow 199
EINECS	Contact for details

Quality Control

Our Acid Yellow 199 is manufactured under a stringent quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, shade, solubility, and fastness properties. A Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics is provided with every shipment to guarantee consistency and compliance with industry standards.

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 orange powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Shade	Conforms to standard
Solubility in Water	≥ 50 g/L (at 25°C)

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