Description

Amido Green Black B CAS NO 5850-39-5 is a synthetic organic dye belonging to the azo dye class, valued for its deep, stable greenish-black coloration. This compound is engineered to deliver consistent, high-intensity color with excellent fastness properties, making it a critical component in demanding industrial applications. It is primarily sought after by manufacturers in the textile, leather, and specialty ink industries where durable and vibrant dark shades are required.

Application

• Textile Dyeing: Primary application for dyeing cotton, wool, silk, and nylon fibers to achieve deep green-black shades.
• Leather Finishing: Used in the dyeing of leather goods, including footwear, apparel, and upholstery, for rich, uniform color.
• Ink Manufacturing: A key pigment for producing specialty inks, including those for packaging, security printing, and artist materials.
• Paper Coloring: Employed in the production of colored papers and paperboard where a specific dark hue is needed.
• Plastics and Polymers: Can be used as a colorant for certain plastics and synthetic materials during the manufacturing process.
• Biological Staining (Research Grade): In purified forms, it may serve as a histological stain in laboratory settings.

Basic Information

Product Name	Amido Green Black B
CAS No.	5850-39-5
Molecular Formula	C28H21N5Na4O19S6
Molecular Weight	1087.88 g/mol
Synonyms	Acid Green Black B; Amido Green Black; C.I. Acid Black 1; Acid Leather Black BG; Amido Schwarz B; Naphthalene Black 12B; Eriosin Black B; Kiton Black B; Lissamine Black B; Acid Black 1
EINECS	227-456-1

Quality Control

Every batch of Amido Green Black B is manufactured and tested under a stringent quality management system to ensure it meets precise color strength and purity specifications. Our products undergo rigorous quality testing, including spectrophotometric analysis and chromatography, to ensure compliance with industry standards for dye content and impurity profiles. 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). Keep away from incompatible materials and sources of ignition. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Dark greenish-black powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 95%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Ash Content	≤ 1.0%
Shade	Matches reference standard
Solubility (in Water)	Completely soluble

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