Description

Primazin Brilliant Yellow 4Gl is a high-performance synthetic dye belonging to the azo dye class, identified by CAS No. 12226-57-2. It is valued for its brilliant and stable yellow coloration, excellent lightfastness, and strong tinctorial strength. This product is essential for manufacturers in the textile, leather, and specialty paper industries seeking vibrant and durable colorants for their products.

Application

• Primary dyeing and printing of polyamide (nylon) fibers and textiles.
• Coloration of leather goods, providing rich and even shades.
• Manufacturing of colored specialty papers and packaging materials.
• As a colorant for certain types of inks and coatings.
• Potential use in the coloration of plastics and polymers.

Basic Information

Product Name	Primazin Brilliant Yellow 4Gl
CAS No.	12226-57-2
Molecular Formula	C21H20N4Na2O8S2
Molecular Weight	582.52 g/mol
Synonyms	Acid Yellow 49; C.I. Acid Yellow 49; Brilliant Yellow 4GL; Acid Leather Yellow 2GL; Acid Fast Yellow E-4GL; Lissamine Yellow 2G; Supranol Yellow 4GL; Telon Yellow 4GL
EINECS	235-427-5

Quality Control

Our Primazin Brilliant Yellow 4Gl is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent shade, strength, and purity. A detailed Certificate of Analysis (COA) confirming identity, assay, and key physical parameters is provided with each shipment.

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-yellow powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Shade & Strength	Within 5% of standard
Moisture Content	Max. 5.0%
Water Insoluble Matter	Max. 0.5%
pH (1% Solution)	6.0 - 8.0

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