Description

Direct Red 80 is a synthetic azo dye belonging to the direct dye class, known for its strong affinity for cellulosic fibers. Its primary 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 reliable and consistent colorants. We supply high-purity Direct Red 80 to meet the stringent demands of global industrial processes.

Application

• Textile Dyeing: Primary application for dyeing cotton, viscose, rayon, and other cellulosic fabrics to achieve vibrant red shades.
• Leather Coloring: Used in the dyeing of leather goods, providing good penetration and color fastness.
• Paper Staining: Employed for coloring paper products, including specialty papers and packaging materials.
• Ink Formulation: A colorant component in the manufacture of certain inks for non-food contact applications.
• Biological Staining: Potential use as a histological stain in laboratory settings (subject to specific grade purity).
• Educational & Research: Serves as a chemical reagent in academic and industrial research laboratories.

Basic Information

Product Name	Direct Red 80
CAS No.	2610-10-8
Molecular Formula	C45H26N10Na4O13S4
Molecular Weight	1133.00 g/mol
Synonyms	Direct Red 80; C.I. 35780; Congo Corinth; Direct Corinth B; Direct Fast Red 3B; Direct Red 3B; Pontamine Fast Red 3B; Sirius Red 3B; Aizen Primula Red 3BH; Atul Direct Fast Red 3B
EINECS	220-027-5

Quality Control

Our Direct Red 80 is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, purity, and solubility. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to guarantee consistency and compliance with your 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). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

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

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