Description

Sirius Orange G is a synthetic organic dye belonging to the azo dye class, identified by CAS No. 6420-32-2. It is valued for its vibrant and stable orange hue, making it a critical component for imparting consistent coloration in demanding industrial processes. This product is essential for manufacturers in the textile, leather, and specialty ink industries who require reliable, high-performance pigments for their formulations.

Application

• Textile Dyeing: Primary application for dyeing natural and synthetic fibers, including cotton, wool, and nylon, to achieve bright orange shades.
• Leather Finishing: Used in the coloration of leather goods, providing rich and uniform color penetration.
• Ink Manufacturing: A key pigment for producing specialty printing inks, including those for packaging and security applications.
• Paper Coloring: Employed in the surface coloring or mass coloration of paper products.
• Biological Staining: Utilized in histological and cytological staining procedures in laboratory settings.
• Plastics and Polymers: Incorporated as a colorant for various plastic materials during the manufacturing process.

Basic Information

Product Name	Sirius Orange G
CAS No.	6420-32-2
Molecular Formula	C16H10N2Na2O7S2
Molecular Weight	452.37 g/mol
Synonyms	Acid Orange 10; C.I. 16230; Orange G; Wool Orange G; Lissamine Orange G; Eosin Scarlet; Acid Leather Orange PG; C.I. Acid Orange 10
EINECS	229-176-4

Quality Control

Our Sirius Orange G is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, purity, and solubility. A 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 5%
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%

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