Description

Fast Red 3Gl is a high-purity, synthetic azo dye known for its bright and stable red color. This compound is critical for applications requiring precise and durable coloration in specialized materials. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries, where consistent color performance is essential for product quality.

Application

• Textile Dyeing: Used for coloring synthetic and natural fibers, providing excellent wash and light fastness.
• Ink Formulation: A key pigment for printing inks, including those for packaging and security printing.
• Industrial Coatings: Imparts color to paints and coatings for plastics, metals, and other substrates.
• Paper Coloring: Employed in the production of specialty and decorative papers.
• Plastics and Polymers: Used as a colorant in the mass coloration of various plastic resins.
• Biological Staining: May serve as a histological stain in laboratory settings for microscopic analysis.

Basic Information

Product Name	Fast Red 3Gl
CAS No.	14263-89-9
Molecular Formula	C23H19ClN6O6S2
Molecular Weight	575.02 g/mol
Synonyms	Fast Red 3GL; C.I. 37085; C.I. Acid Red 249; 1-Naphthalenesulfonic acid, 3-[[4-[(2,5-dichlorophenyl)azo]-3-hydroxy-2,7-naphthalenedisulfonyl]amino]-4-methoxy-, sodium salt; Acid Leather Red GL; Amacid Fast Red GL; Atul Acid Fast Red GL; Derma Fast Red GL
EINECS	238-172-5

Quality Control

Our Fast Red 3Gl is manufactured under a strict quality management system to ensure batch-to-batch consistency and high performance. Every lot is tested against rigorous internal specifications for color strength, purity, and solubility. Certificates of Analysis (COA) detailing all quality parameters are available upon request to support your quality assurance protocols.

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 such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Ash Content	≤ 1.0%
Water Solubility	Conforms

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