Description

C.I. Acid Red 240 is a synthetic, water-soluble azo dye belonging to the acid dye class, identified by CAS NO 61724-38-7. It is valued for its bright, vivid red hue and strong affinity for protein fibers like wool, silk, and nylon, offering excellent wash and light fastness properties. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent coloration for their products.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, nylon, and modified acrylic fibers to achieve bright red shades.
• Leather Finishing: Used for coloring leather goods, providing rich and durable color.
• Paper Staining: Employed in the production of colored papers, including specialty and decorative papers.
• Ink Formulation: A colorant component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings.
• Polymer Coloring: For tinting certain synthetic polymers and plastics during manufacturing.

Basic Information

Product Name	C.I. Acid Red 240
CAS No.	61724-38-7
Molecular Formula	C32H21N5Na2O8S2
Molecular Weight	713.65 g/mol
Synonyms	Acid Red 240; C.I. 18260; Acid Leather Red G; Nylosan Red F-3GL; Telon Red F3GL; Supranol Red 3BW; Lanasyn Red 2GL; Acid Fast Red A2B
EINECS	Contact for details

Quality Control

Our C.I. Acid Red 240 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including spectrophotometric analysis and chromatography, to ensure consistent color strength, purity, and compliance with industry specifications. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

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%
Shade	Conforms to standard
Fastness Properties	Contact for details

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