Description

C.I.Direct Orange 105 is a high-performance direct dye belonging to the azo chemical class, identified by CAS No. 61814-94-6. It is valued for its strong, vibrant orange hue and excellent substantivity to cellulosic fibers like cotton and viscose. This dye is essential for manufacturers in the textile and paper industries seeking reliable, cost-effective coloration with good wash fastness properties.

Application

• Primary dyeing of cotton, viscose, and other cellulosic fibers in textile manufacturing.
• Coloration of paper and paperboard for packaging and specialty products.
• Used in the production of leather goods requiring orange shades.
• Formulation of inks for specific printing applications.
• Dyeing of nylon under specific acidic conditions.
• Blending with other direct dyes to achieve a wide range of orange and brown shades.

Basic Information

Product Name	C.I. Direct Orange 105
CAS No.	61814-94-6
Molecular Formula	C32H20N6Na4O13S4
Molecular Weight	956.78 g/mol
Synonyms	Direct Orange 105; C.I. 29025; Direct Fast Orange S; Direct Orange SE; Direct Orange S; Direct Orange 105 (C.I. 29025); Benzenesulfonic acid, 4,4'-[1,4-phenylenebis(azo)]bis[5-amino-6-hydroxy-, tetrasodium salt
EINECS	Contact for details

Quality Control

Our C.I. Direct Orange 105 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent strength, shade, and application performance. A Certificate of Analysis (COA) detailing purity, dye content, and physical specifications is provided with each shipment to guarantee it meets your technical 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). 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
Dye Content	≥ 95%
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard sample
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.