Description

Mordant Yellow 26 is a synthetic organic dye belonging to the mordant dye class, identified by CAS NO 6232-49-1. This compound is valued for its ability to form stable, colored complexes with metal ions, resulting in vibrant and wash-fast shades. It is primarily required by manufacturers in the textile, leather, and specialty chemical industries for dyeing and printing applications where metal coordination is utilized to achieve specific color properties.

Application

• Textile Dyeing: Used for dyeing protein fibers like wool and silk, as well as polyamide fibers, when pre-treated or post-treated with metal mordants such as chromium or aluminum salts.
• Leather Coloring: Employed in the dyeing of leather goods to produce yellow to orange hues with good light and rub fastness.
• Biological Staining: Can be utilized as a histological stain in microscopy for contrast enhancement in tissue samples.
• Ink Formulation: A component in the manufacture of specialized inks for security printing or artistic purposes.
• Analytical Chemistry: Serves as a metallochromic indicator or a complexometric agent in certain titration methods.
• Research & Development: Used as a chemical intermediate or reference standard in synthetic chemistry and dye research laboratories.

Basic Information

Product Name	Mordant Yellow 26
CAS No.	6232-49-1
Molecular Formula	C16H9N4Na3O9S2
Molecular Weight	550.36 g/mol
Synonyms	Acid Yellow 99; C.I. Mordant Yellow 26; C.I. 18850; Alizarin Yellow R; Alizarin Yellow RW; Sodium 5-(4-nitrophenylazo)salicylate; 5-[(4-Nitrophenyl)azo]salicylic acid sodium salt
EINECS	228-330-6

Quality Control

Our Mordant Yellow 26 is produced under a stringent quality management system. Each batch is tested to ensure consistent purity, color strength, and application performance. Key parameters such as assay, hue, and impurity profiles are verified. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory needs.

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 incompatible materials. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5% (vs. Std.)
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Freely soluble

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