Description

Direct Orange 108 is a synthetic azo dye belonging to the direct dye class, valued for its strong affinity to cellulosic fibers without the need for a mordant. This compound is engineered to deliver a bright and durable orange hue with excellent wash and light fastness properties. It is primarily required by the textile industry for dyeing cotton, viscose, and other natural fibers, as well as by manufacturers of paper and leather goods seeking consistent, high-quality coloration.

Application

• Primary dyeing and printing of cotton fabrics and yarns.
• Coloration of viscose (rayon) and other regenerated cellulose fibers.
• Dyeing of paper products for decorative and packaging applications.
• Coloring leather in the tanning industry.
• Used in the production of ink formulations for specific printing applications.
• Potential use as a biological stain in laboratory settings.

Basic Information

Product Name	Direct Orange 108
CAS No.	6358-79-8
Molecular Formula	C32H20N6Na4O13S4
Molecular Weight	956.78 g/mol
Synonyms	Direct Orange 108; C.I. Direct Orange 108; Direct Orange 8GL; Direct Orange GL; Direct Fast Orange 8GL; Direct Orange 8G; Benzo Orange 8GL; Pontamine Orange 8GL; Aizen Direct Orange 8GL; Atul Direct Orange 8GL
EINECS	228-781-1

Quality Control

Our production of Direct Orange 108 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed for key parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Assay (Color Strength)	≥ 95% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Within agreed tolerance
Fastness Properties	To be specified per grade

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