Description

C.I. Acid Yellow 168 is a synthetic organic dye belonging to the azo chemical class, valued for its bright, stable yellow hue and good fastness properties. This acid dye is specifically engineered for applications requiring strong affinity to polyamide and protein-based fibers, delivering consistent and vibrant coloration. It is a critical component for manufacturers in the textile, leather, and paper industries seeking reliable and high-performance yellow dyes for their products.

Application

• Primary dyeing of nylon (polyamide) fibers and fabrics.
• Coloration of wool, silk, and other protein-based textiles.
• Dyeing and printing applications in the leather processing industry.
• Manufacture of colored paper and paper products.
• Used in the production of inks for various specialized applications.
• Potential use as a colorant for anodized aluminum.

Basic Information

Item	Detail
Product Name	C.I. Acid Yellow 168
CAS No.	12235-27-7
Molecular Formula	C16H12N4Na2O7S2
Molecular Weight	478.40 g/mol
Synonyms	Acid Yellow 168; C.I. 13950; Acid Leather Yellow G; Nylosan Yellow E-2G; Telon Yellow G; Acid Fast Yellow E-2G; 7-Hydroxy-8-[(E)-2-(4-nitrophenyl)diazen-1-yl]naphthalene-1,3-disulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our C.I. Acid Yellow 168 is manufactured under a stringent quality management system. Each batch undergoes comprehensive analysis to ensure it meets precise specifications for color strength, shade, solubility, and impurity profiles. Certificates of Analysis (COA) detailing these parameters are provided to guarantee batch-to-batch consistency and performance reliability for your industrial 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). Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Within agreed tolerance
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 30.0%
Fastness Properties	Contact for details

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