Description

Acid Red 260 is a synthetic azo dye belonging to the acid dye class, known for its bright and vibrant red color. This high-performance dye is valued for its excellent color fastness, solubility, and strong affinity for protein-based and polyamide fibers. It is primarily used in the textile industry for dyeing wool, silk, and nylon, as well as in the coloration of leather, paper, and inks. Our supply of Acid Red 260 CAS NO 12239-07-5 ensures consistent quality and reliable performance for demanding industrial applications.

Application

• Primary dyeing of wool, silk, and nylon textiles.
• Coloration of leather goods, including footwear and upholstery.
• Manufacturing of colored paper and specialty paper products.
• Formulation of inks for writing, printing, and stamping.
• Dyeing of feathers and other natural protein materials.
• As a colorant for certain cosmetic and personal care formulations.
• Historical or specialized use in biological stains for microscopy.
• Potential use in the coloration of food packaging materials (subject to regulatory compliance).

Basic Information

Product Name	Acid Red 260
CAS No.	12239-07-5
Molecular Formula	C26H21N5Na2O8S2
Molecular Weight	649.58 g/mol
Synonyms	Acid Red 260; C.I. 18280; Acid Leather Red BG; Naphthalene Red BG; Acid Fast Red BG; Lissamine Red BG; Supranol Fast Red BG; Wool Fast Red BG
EINECS	Contact for details

Quality Control

Our Acid Red 260 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against stringent in-house specifications for critical parameters including color strength, shade, solubility, and impurity profile. A Certificate of Analysis (COA) detailing purity, physical properties, and performance tests is provided with every shipment to guarantee compliance with your technical 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 light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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