Description

C.I. Acid Green 26 is a synthetic acid dye belonging to the anthraquinone chemical class, identified by CAS NO 61901-29-9. It is valued for its bright, stable green hue and good wet fastness properties in demanding applications. This dye is primarily used in the textile industry for dyeing protein fibers like wool and silk, as well as in the coloration of leather, paper, and certain specialty inks.

Application

• Primary dyeing of wool, silk, and other protein-based natural fibers.
• Coloration of leather goods, including footwear, apparel, and upholstery.
• Paper staining and tinting for specialty decorative papers.
• Ink formulation for specific printing applications requiring acid dyes.
• Dyeing of nylon and other polyamide fibers where applicable.
• Historical or specialized staining in biological and laboratory contexts.

Basic Information

Product Name	C.I. Acid Green 26
CAS No.	61901-29-9
Molecular Formula	C28H20N2Na2O8S2
Molecular Weight	622.58 g/mol
Synonyms	Acid Green 26; C.I. 61575; Acid Leather Green G; Anthraquinone Green G; Wool Green S; Acid Fast Green G; Lissamine Green B; Dermina Green G; Telon Green G; Supranol Green GW
EINECS	263-290-8

Quality Control

Our C.I. Acid Green 26 is manufactured under a rigorous quality management system. Each batch is tested to ensure consistent strength, shade, and chemical purity. A comprehensive Certificate of Analysis (COA) detailing parameters such as purity, solubility, and heavy metal content is provided to guarantee it meets the specifications required for industrial dyeing processes.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Dark green powder or granules
Identification (IR)	Conforms to standard
Assay (Dye Content)	≥ 95%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard sample
Solubility in Water	Conforms
Heavy Metals (as Pb)	≤ 50 ppm

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