Description

C.I. Basic Orange 49:1 is a synthetic cationic dye belonging to the basic dye class, identified by CAS NO 77907-24-5. This product is valued for its strong affinity to polyacrylonitrile fibers and other substrates with anionic sites, delivering vibrant and durable coloration. It is primarily used by manufacturers in the textile, paper, and specialty ink industries seeking high-intensity orange hues with good light and wash fastness properties.

Application

• Textile Dyeing: Primary application for dyeing acrylic fibers, modacrylic, and certain types of polyester to achieve bright orange shades.
• Paper Coloring: Used in the production of tinted papers, decorative tissues, and specialty packaging materials.
• Ink Manufacturing: A key colorant for flexographic, gravure, and inkjet inks, particularly where solvent-based systems are employed.
• Leather Finishing: Applied in the dyeing of leather goods to provide consistent and rich orange coloration.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: For mass coloration of certain plastics where compatibility and thermal stability are suitable.

Basic Information

Product Name	C.I. Basic Orange 49:1
CAS No.	77907-24-5
Molecular Formula	C21H26ClN3O3S
Molecular Weight	435.97 g/mol
Synonyms	Basic Orange GRL; Astrazon Orange G; Aizen Cathilon Orange GLH; Maxilon Orange GRL; C.I. 480160; 1,3-Benzenedicarboximidamide, N,N'-(2-((4-((2,6-dichlorophenyl)azo)phenyl)ethyl)imino)bis-; Basic Orange 49:1 (monoazo class)
EINECS	Contact for details

Quality Control

Our production of C.I. Basic Orange 49:1 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility	Clear solution at specified concentration
Ash Content	≤ 1.0%
Particle Size	≥ 95% passes through 80 mesh

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