Description

Basic Yellow 11 is a cationic, quaternary ammonium-based dye belonging to the family of basic dyes. This compound is valued for its strong affinity to polyacrylonitrile fibers and certain modified polyesters, providing excellent color fastness and brightness. It is primarily utilized by manufacturers in the textile, paper, and specialty ink industries for dyeing and printing applications. The product is supplied as a high-purity powder to ensure consistent performance and batch-to-batch reliability in industrial processes.

Application

• Textile Dyeing: Primary application for dyeing acrylic fibers, modacrylics, and certain cationic-dyeable polyesters to achieve vibrant yellow shades.
• Paper Coloring: Used in the production of colored papers, tissues, and specialty packaging where a bright yellow hue is required.
• Ink Formulation: A key component in the manufacture of inks for flexographic, gravure, and inkjet printing, particularly on treated substrates.
• Leather Finishing: Employed in the dyeing of leather goods to provide uniform and durable coloration.
• Biological Staining: Can be used as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Suitable for mass coloration of certain plastics where thermal stability is sufficient.

Basic Information

Product Name	Basic Yellow 11
CAS No.	4208-80-4
Molecular Formula	C21H29N3O3S
Molecular Weight	403.54 g/mol
Synonyms	Aizen Cathilon Yellow 3GLH; Astrazon Yellow 3GL; Basacryl Yellow X-3GL; Basic Bright Yellow 3GL; C.I. Basic Yellow 11; Maxilon Yellow 3GL; Quaternary Ammonium Compound Yellow 3GL; 4-[(4-Aminophenyl)(4-imino-2,5-cyclohexadien-1-ylidene)methyl]-2-methylbenzenaminium methyl sulfate
EINECS	224-128-7

Quality Control

Our Basic Yellow 11 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets the high standards required for industrial dyeing applications. A Certificate of Analysis (COA) detailing specific test results for parameters such as color strength, solubility, and ash content is provided with each shipment to guarantee consistency and performance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept sealed to prevent moisture absorption, which can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to Brownish-Yellow Powder
Identification (IR)	Conforms to Standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content (KF)	Max. 5.0%
Ash Content	Max. 1.0%
Solubility in Water	Clear Solution
pH (1% Solution)	4.0 - 7.0

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