Description

C.I. Acid Green 103 is a synthetic, water-soluble acid dye belonging to the anthraquinone chemical class, identified by CAS No. 77031-16-4. This high-purity dye is valued for its bright, stable green hue and excellent fastness properties, making it a critical component for achieving consistent and durable coloration. It is primarily required by manufacturers in the textile, leather, and specialty paper industries seeking reliable, high-performance colorants for nylon, wool, silk, and other protein-based fibers.

Application

• Textile Dyeing: Primary application for dyeing nylon, wool, silk, and other polyamide fibers, offering good leveling and wash fastness.
• Leather Finishing: Used for coloring leather goods, providing vibrant and uniform shades with good lightfastness.
• Paper Coloring: Employed in the production of specialty papers, including decorative and security papers.
• Ink Formulation: A component in the manufacture of inks for various printing applications.
• Biological Staining: Potential use as a histological stain in laboratory settings due to its specific affinity.
• Other Substrates: Suitable for dyeing modified acrylics and other synthetic fibers that accept acid dyes.

Basic Information

Product Name	C.I. Acid Green 103
CAS No.	77031-16-4
Molecular Formula	C32H26N4Na2O8S2
Molecular Weight	696.66 g/mol
Synonyms	Acid Green 103; C.I. 10385; Acid Leather Green 2G; Anthraquinone Green 3G; Nylosan Green F-3GL; Telon Green 3GL; Acid Fast Green 3G; Acidol Green 3GL
EINECS	Contact for details

Quality Control

Our C.I. Acid Green 103 is manufactured under a strict quality management system. Every batch is tested to ensure it meets precise color strength, shade, and chemical purity specifications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical parameters is provided to guarantee consistency and compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark green powder or granules
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0

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