Description

Basic Yellow 36 is a cationic, quaternary ammonium-based dye belonging to the azo chemical class. This compound is valued for its strong affinity to polyacrylonitrile and other synthetic fibers, providing excellent color fastness and brightness. It is primarily used by manufacturers in the textile, paper, and leather industries for dyeing and printing applications where vibrant, durable yellow shades are required.

Application

• Textile Dyeing: Primary application for dyeing acrylic, modacrylic, and cationic-dyeable polyester fibers to achieve brilliant yellow hues.
• Paper Coloration: Used in the production of specialty papers, including decorative and packaging papers, requiring high color intensity.
• Leather Finishing: Employed in the dyeing of leather goods to provide consistent and wash-fast yellow coloring.
• Ink Formulation: A key component in the manufacture of inks for non-impact printing and specialty markers.
• Biological Staining: Potential use as a stain in histological and microbiological applications due to its cationic nature.
• Plastics and Polymers: For the mass coloration of certain plastics where thermal stability is sufficient.

Basic Information

Product Name	Basic Yellow 36
CAS No.	12221-83-9
Molecular Formula	C21H29N3O4S
Molecular Weight	419.54 g/mol
Synonyms	Aizen Cathilon Yellow 3GLH; Astrazon Yellow 3GL; Basacryl Yellow X-3GL; Basic Yellow 3GL; C.I. Basic Yellow 36; Maxilon Yellow 3GL; Pyrazol Yellow 3G; Sevron Yellow L; 1-Methyl-2-[(1-methyl-2-phenyl-1H-indol-3-yl)azo]pyridinium methyl sulfate; 2-[(1-Methyl-2-phenyl-1H-indol-3-yl)azo]-1-methylpyridinium methyl sulfate
EINECS	Contact for details

Quality Control

Our Basic Yellow 36 is manufactured under a strict quality management system. Every batch is tested to ensure it meets precise specifications for color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) documenting purity (typically >95% by HPLC), heavy metal content, and other critical parameters is provided with each shipment to guarantee consistency and compliance for your industrial processes.

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 (store away from light).

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Solubility (in water)	Clear, complete solution
Heavy Metals (as Pb)	Max. 20 ppm

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