Description

Acid Yellow 194 is a synthetic organic dye belonging to the acid dye class, characterized by its bright yellow hue and good solubility in aqueous systems. This high-performance colorant is valued for its strong affinity to protein fibers like wool, silk, and nylon, delivering excellent wash and light fastness properties. It is a critical component for textile manufacturers, leather tanneries, and paper producers seeking vibrant, durable yellow coloration.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, nylon, and modified acrylic fibers to achieve bright yellow shades.
• Leather Finishing: Used in the dyeing of leather goods, providing rich and uniform color penetration.
• Paper Coloring: Employed in the production of specialty papers, including decorative and packaging papers.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a stain in microscopy and histology for biological tissues.
• Polymer Coloring: Can be used for mass coloration of certain synthetic polymers and plastics.

Basic Information

Product Name	Acid Yellow 194
CAS No.	61814-52-6
Molecular Formula	C21H18N4Na2O8S2
Molecular Weight	580.50 g/mol
Synonyms	Acid Yellow 194; C.I. Acid Yellow 194; Acid Leather Yellow G; Nylosan Yellow E-3G; Telon Yellow G; Supranol Yellow GW; Acid Fast Yellow E-3G; 2,7-Naphthalenedisulfonic acid, 5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxy-3-[(2-methoxyphenyl)azo]-, disodium salt
EINECS	Contact for details

Quality Control

Every batch of Acid Yellow 194 is manufactured and tested under a strict quality management system to ensure consistent shade, strength, and purity. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing parameters such as color strength, shade, solubility, and impurity profile are available upon request.

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 heat sources and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Solubility in Water	Clear solution at specified concentration
Heavy Metals (as Pb)	≤ 20 ppm

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