Description

Acid Green 41 is a synthetic acid dye belonging to the anthraquinone class, known for its bright greenish-blue hue and excellent lightfastness. This dye is valued for its strong affinity to protein fibers like wool, silk, and nylon, providing vibrant and durable coloration. It is primarily utilized in the textile industry for dyeing and printing, as well as in the coloration of leather, paper, and certain specialty inks.

Application

• Textile Dyeing: Primary application for dyeing wool, silk, and polyamide (nylon) fibers to achieve green to blue-green shades.
• Leather Coloring: Used in the dyeing of leather goods, providing rich and stable color.
• Paper Staining: Employed for coloring specialty papers, including decorative and security papers.
• Ink Formulation: A colorant component in the manufacture of certain inks, including ballpoint pen inks and stamp pad inks.
• Biological Staining: Potential use as a histological stain in microscopy, though specific grades are required.
• Other Industrial Applications: Can be used for coloring soaps, detergents, and other materials where acid dyes are applicable.

Basic Information

Product Name	Acid Green 41
CAS No.	4430-16-4
Molecular Formula	C28H20N2O6S2
Molecular Weight	544.60 g/mol
Synonyms	Acid Green 41; C.I. Acid Green 41; C.I. 62560; Acid Blue 41; Lissamine Green B; Wool Green S; Acid Leather Green V; D&C Green No. 5 (discontinued use); 9,10-Anthracenedione, 1,4-bis[(4-methylphenyl)amino]-5,8-dihydroxy-, sodium salt (1:?); Sodium 1,4-bis(p-tolylamino)-5,8-dihydroxyanthraquinone-2,7-disulfonate
EINECS	224-622-0

Quality Control

Our Acid Green 41 is manufactured under a strict quality management system. Each batch undergoes comprehensive testing for key parameters including color strength, shade, solubility, and impurity profile to ensure consistent performance and batch-to-batch uniformity. Certificates of Analysis (COA) detailing purity, physical properties, and conformance to specification 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. The product is light-sensitive and should be stored away from direct light exposure to prevent degradation.

Specification

Item	Specification
Appearance	Dark green to blue-green powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 90%
Color Strength	100 ± 5% (vs. Standard)
Shade	Conforms to standard
Moisture Content	Max. 5.0%
Water Solubility	Conforms
Ash Content	Max. 1.0%

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