Description

Basic Orange 33 CAS NO 132758-56-6 is a synthetic cationic dye belonging to the azo and methine chemical classes, valued for its strong affinity to polyacrylonitrile and other synthetic fibers. This compound is a critical component in the textile industry for achieving vibrant, wash-fast orange to red shades on acrylic, modacrylic, and cationic dyeable polyester materials. Its primary application is in the commercial dyeing of fabrics, yarns, and garments, serving manufacturers who require consistent color quality and excellent fastness properties.

Application

• Textile Dyeing: Primary application for dyeing acrylic, modacrylic, and cationic dyeable polyester fibers to achieve brilliant orange and red hues.
• Garment Manufacturing: Used in the batch dyeing of finished knitwear, sweaters, and other apparel items made from synthetic fibers.
• Yarn Dyeing: Employed for coloring synthetic yarns before weaving or knitting, ensuring uniform color penetration.
• Industrial Fabric Production: Applicable for dyeing technical textiles, upholstery fabrics, and automotive textiles where color consistency is paramount.
• Paper Coloring: Can be used as a specialty dye for certain types of paper and paper products requiring specific color characteristics.
• Leather Auxiliary Dyeing: Potential use in coloring leather and synthetic leather materials.

Basic Information

Product Name	Basic Orange 33
CAS No.	132758-56-6
Molecular Formula	C17H21N6
Molecular Weight	309.39 g/mol
Synonyms	Basic Orange 33; C.I. Basic Orange 33; Aizen Cathilon Orange GLH; Astrazon Orange G; Maxilon Orange GRL; Cationic Orange GRL; DyStar Basic Orange GRL; 2-[[4-[(Dimethylamino)phenyl]azo]-1,3-thiazol-3-ium-3-yl]-3-methylbenzothiazolium; 3-Methyl-2-((4-(dimethylamino)phenyl)azo)benzothiazol-3-ium
EINECS	Contact for details

Quality Control

Our Basic Orange 33 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance reliability for industrial applications. Each production lot undergoes comprehensive analysis, including strength, shade, and solubility testing, to meet the stringent requirements of the global textile market. A Certificate of Analysis (COA) detailing purity, dye content, and key physical parameters is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents. The product is light-sensitive; prolonged exposure to direct light should be avoided to maintain color strength and stability.

Specification

Item	Specification
Appearance	Orange to Reddish-Brown Powder
Identification (IR)	Conforms to Standard
Assay (Dye Content)	Min. 95%
Moisture Content	Max. 5.0%
Water Insoluble Matter	Max. 0.5%
Shade	Conforms to Standard
Solubility in Water	Complete

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