Description

C.I. Acid Blue 296 is a synthetic acid dye belonging to the anthraquinone chemical class, valued for its bright blue hue and strong affinity for protein fibers like wool, silk, and nylon. Its primary commercial value lies in providing excellent wash and light fastness properties, ensuring color durability in demanding applications. This dye is essential for manufacturers in the textile, leather finishing, and specialty paper industries seeking consistent, high-performance coloration.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers to achieve vibrant blue shades.
• Leather Finishing: Used in the coloration of leather goods, providing rich color with good penetration and fastness.
• Paper Coloring: Employed in the production of specialty and decorative papers where a stable blue color is required.
• Ink Formulation: A colorant component in certain types of inks, particularly for non-impact printing or specialty applications.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its affinity for specific tissue structures.

Basic Information

Product Name	C.I. Acid Blue 296
CAS No.	61967-96-2
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.66 g/mol
Synonyms	Acid Blue 296; C.I. 621525; Acid Blue AR; Lanasyn Blue S-RBL; Telon Blue ARL; Supranol Blue ARL; Nylosan Blue N-5GL; Anthraquinone Blue AR; 1-Amino-4-(3-((4-anilinophenyl)amino)-2-sulfonatophenyl)amino-9,10-dihydro-9,10-dioxoanthracene-2-sulfonate disodium salt
EINECS	Contact for details

Quality Control

Our C.I. Acid Blue 296 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including identification, purity assay, and strength evaluation, to ensure it meets precise coloristic and chemical specifications. A Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee traceability and compliance with your quality 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 incompatible materials and sources of ignition. For long-term storage, maintain the original packaging in a controlled environment with low humidity.

Specification

Item	Specification
Appearance	Dark Blue Powder
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
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.