Description

Direct Red 224 is a synthetic azo dye belonging to the direct dye class, valued for its strong affinity to cellulosic fibers. Its primary commercial value lies in providing a bright, wash-fast red coloration in textile dyeing and printing applications. This product is essential for manufacturers in the textile, leather, and paper industries seeking consistent, high-quality colorants for their production processes.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fibers.
• Leather Coloring: Used for imparting uniform red shades to leather goods.
• Paper Staining: Employed in the production of colored papers and paper products.
• Ink Formulation: A colorant component in certain specialty printing inks.
• Biological Staining: Potential use as a histological stain in laboratory settings.
• Polymer Mass Coloration: For coloring certain plastics and polymers during manufacture.

Basic Information

Product Name	Direct Red 224
CAS No.	12222-48-9
Molecular Formula	C36H24N8Na4O16S4
Molecular Weight	1080.86 g/mol
Synonyms	Direct Fast Scarlet 4BS; C.I. 29165; Direct Scarlet 4BS; Pontamine Scarlet 4BS; Direct Red 4BS; Benzo Scarlet 4BS; Atul Direct Fast Scarlet 4BS; Amanil Fast Scarlet 4BS
EINECS	Contact for details

Quality Control

Our Direct Red 224 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and fastness properties. A Certificate of Analysis (COA) detailing purity, physical properties, and performance metrics is provided with every shipment to guarantee it meets your specific application requirements.

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. The product is hygroscopic (moisture-sensitive); ensure the container is resealed tightly after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	≥ 98% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Solubility in Water	Conforms
Fastness Properties (Typical)	Light: 4-5; Wash: 3-4

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