Description

Acid Red 274 is a synthetic, water-soluble azo dye belonging to the acid dye class, valued for its bright red color and good fastness properties. It is a critical component for imparting vibrant and durable coloration to protein-based fibers and other substrates with anionic character. This dye is essential for manufacturers in the textile, leather, and paper industries seeking consistent, high-quality red shades.

Application

Acid Red 274 is primarily used for dyeing and printing applications where a strong affinity for protein fibers is required. Its key applications include:

• Textile Dyeing: For coloring natural protein fibers such as wool, silk, and specialty animal hairs (e.g., mohair, alpaca).
• Leather Finishing: Imparts color to leather goods, including apparel, footwear, and upholstery.
• Paper Coloration: Used in the production of specialty colored papers, including decorative and packaging materials.
• Ink Formulation: A colorant component for certain types of inks, including those for non-impact printing.
• Biomedical Staining: Potential use as a histological stain in laboratory settings.

Basic Information

Product Name	Acid Red 274
CAS No.	61931-18-8
Molecular Formula	C26H21N5Na2O8S2
Molecular Weight	649.58 g/mol
Synonyms	Acid Red 274; C.I. Acid Red 274; Acid Leather Red 2G; Acid Fast Red 2G; Lanasyn Red 2G; Supranol Fast Red 2G; Telon Fast Red 2G; Nylosan Red F-2G
EINECS	Contact for details

Quality Control

Our Acid Red 274 is produced under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot is tested for critical parameters including color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) detailing purity, physical properties, and conformance to specification is provided with every 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	Red to dark red powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 50 ppm

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