Description

C.I. Acid Blue 247 is a synthetic, water-soluble acid dye belonging to the anthraquinone chemical class, identified by CAS No. 12219-48-6. It is valued for its bright, clear blue hue and excellent fastness properties, particularly on polyamide fibers like nylon. This dye is essential for manufacturers in the textile and leather industries seeking vibrant, durable coloration with good leveling and migration characteristics.

Application

• Textile Dyeing: Primary application for dyeing polyamide (nylon) fibers, including apparel, sportswear, and carpets, offering good wash and light fastness.
• Leather Finishing: Used for coloring leather goods, providing rich, uniform shades with good penetration.
• Ink Formulation: A colorant component in the manufacture of specialty inks for various printing applications.
• Paper Staining: Employed for the coloration of specialty papers where a bright blue shade is required.
• Biological Staining: Potential use as a histological stain in laboratory settings, though specific grades must be verified.
• Plastics and Polymers: Can be used for tinting certain types of plastics and synthetic materials.

Basic Information

Product Name	C.I. Acid Blue 247
CAS No.	12219-48-6
Molecular Formula	C20H14N2Na2O8S2
Molecular Weight	528.44 g/mol
Synonyms	Acid Blue 247; C.I. 62075; Acid Blue ARL; Nylosan Blue N-5GL; Telon Blue ANL; Acid Leather Blue ARL; 1,4-Bis[(2,4-diaminophenyl)amino]-9,10-anthraquinone disulfonic acid disodium salt; Anthraquinone Blue ARL
EINECS	Contact for details

Quality Control

Our C.I. Acid Blue 247 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 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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Dark blue powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Dye Content (Assay)	≥ 90%
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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