Description

Mordant Yellow 59 is a synthetic organic dye belonging to the mordant dye class, valued for its ability to form stable, colored complexes with metal ions. This property makes it an essential component for achieving vibrant, wash-fast colors on various substrates. It is primarily utilized in industries requiring durable coloration, such as textile manufacturing and specialized staining applications.

Application

• Textile Dyeing: Used as a mordant dye for wool, silk, and nylon, producing yellow shades with excellent light and wash fastness when complexed with metal salts like chromium or aluminum.
• Leather Coloring: Employed in the dyeing of leather goods to achieve consistent and durable yellow hues.
• Biological Staining: Can be used in histological and cytological staining procedures as a specialized stain in laboratory settings.
• Ink Formulation: A potential colorant for the manufacture of specialty inks, including those for security or artistic purposes.
• Paper Coloring: Suitable for tinting paper products where color stability is required.
• Research & Development: Serves as a chemical intermediate or reference standard in synthetic chemistry and dye research laboratories.

Basic Information

Product Name	Mordant Yellow 59
CAS No.	37293-46-2
Molecular Formula	C16H12N3NaO5S
Molecular Weight	381.34 g/mol
Synonyms	Acid Mordant Yellow GG; C.I. Mordant Yellow 59; C.I. 13960; Mordant Yellow GG; 5-[(4-Sulfophenyl)azo]salicylic Acid Sodium Salt; 5-[(p-Sulfophenyl)azo]salicylic Acid Sodium Salt; Alizarin Yellow GG; Sodium 5-[(4-sulfophenyl)azo]salicylate
EINECS	253-449-8

Quality Control

Our Mordant Yellow 59 is manufactured under a strict quality management system. Each batch is tested to ensure consistent purity, color strength, and application performance. A comprehensive Certificate of Analysis (COA) detailing parameters such as assay, hue, and impurity profile is provided with every shipment to guarantee it meets your specific 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 tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100 ± 5% (vs. Standard)
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Water Solubility	Freely soluble

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