Description

Acid Red 277 is a synthetic organic dye belonging to the azo dye class, widely recognized for its vibrant red color and excellent dyeing properties. It is valued for its strong color strength, good light and wash fastness, and compatibility with various substrates. This dye is primarily used in the textile industry for dyeing and printing natural and synthetic fibers, as well as in the coloration of leather, paper, and specialty inks. Its reliable performance makes it a key component for manufacturers requiring consistent and high-quality red hues.

Application

• Primary dye for nylon, wool, and silk textiles.
• Printing ink formulations for packaging and specialty papers.
• Leather dyeing for footwear, garments, and upholstery.
• Coloration of paper products, including decorative and security papers.
• As a colorant in the manufacture of stationery and art supplies.
• Potential use in the coloration of certain plastics and polymers.

Basic Information

Product Name	Acid Red 277
CAS No.	12220-26-7
Molecular Formula	C26H21N5Na2O8S2
Molecular Weight	665.56 g/mol
Synonyms	Acid Red 277; C.I. Acid Red 277; Acid Leather Red 2B; Nylosan Red F-2B; Telon Red F-2B; Acid Fast Red A2B; Lissamine Red 2B; Acid Brilliant Red 2B
EINECS	Contact for details

Quality Control

Our Acid Red 277 is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive testing, including color strength, shade, solubility, and fastness properties, against established internal specifications. A Certificate of Analysis (COA) detailing these parameters is provided with every shipment to guarantee product integrity and support your quality assurance processes.

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 and incompatible materials.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
Fastness Properties	Contact for details

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