Description

C.I. Acid Blue 112 is a synthetic acid dye belonging to the anthraquinone chemical class, valued for its bright blue hue and good fastness properties. This dye is engineered to deliver consistent, vibrant coloration with excellent affinity for protein-based fibers like wool, silk, and nylon. It is a critical component for manufacturers in the textile, leather, and paper industries seeking reliable and high-performance blue dyes for their products. The compound is identified by CAS No. 12219-19-1.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers to achieve a bright blue shade.
• Leather Finishing: Used in the coloration of leather goods, providing rich and durable blue tones.
• Paper Staining: Employed for tinting specialty papers, including decorative and security papers.
• Ink Formulation: A colorant component in the manufacturing of certain inks for industrial marking or printing.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Polymer Coloring: Suitable for mass coloration of specific synthetic polymers where acid dye compatibility is required.

Basic Information

Product Name	C.I. Acid Blue 112
CAS No.	12219-19-1
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	704.70 g/mol
Synonyms	Acid Blue 112; C.I. 50315; Acid Leather Blue AGG; Acid Blue AS; Acid Fast Blue AGG; Amido Blue Black 10B; Supranol Fast Blue AGG; Anthraquinone Blue AS
EINECS	235-386-4

Quality Control

Our C.I. Acid Blue 112 is manufactured under a stringent 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 to meet industry specifications for textile and leather dyeing. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and conformance 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
Identification (IR)	Conforms to Standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
pH (1% Solution)	6.0 - 8.0
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.