Description

Acid Yellow 116 is a synthetic anionic dye belonging to the azo chemical class, valued for its bright, stable yellow hue. It is a critical component for achieving consistent and vibrant coloration in demanding industrial applications. This product is essential for manufacturers in the textile, leather, and paper industries seeking reliable, high-performance dyes for their finishing processes.

Application

• Textile Dyeing: Primarily used for dyeing nylon, silk, and wool fibers, offering good wash and light fastness.
• Leather Coloring: Applied in the dyeing of leather goods, providing uniform and rich yellow shades.
• Paper Staining: Used for coloring paper products, including specialty papers and packaging materials.
• Ink Formulation: A pigment source in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a microscopic stain in histology and cytology laboratories.
• Plastics and Polymers: Can be incorporated for coloring certain types of plastics and synthetic materials.

Basic Information

Product Name	Acid Yellow 116
CAS No.	12239-18-8
Molecular Formula	C16H12N4Na2O7S2
Molecular Weight	478.40 g/mol
Synonyms	Acid Yellow A; C.I. Acid Yellow 116; Acid Leather Yellow A; Acid Fast Yellow A; Acidol Yellow M-2GL; Amacid Yellow A; Dermacid Yellow A; Suracid Yellow A; 7-Hydroxy-8-[(E)-(4-nitrophenyl)diazenyl]naphthalene-1,3-disulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our Acid Yellow 116 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile to meet industry specifications. Certificates of Analysis (COA) documenting purity and performance characteristics 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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3%
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 0.5%

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