Description

3-Methyl-2-[[p-(n-Methylanilino)Phenyl]Azo]Thiazolium Hydroxide is a specialized cationic azo dye intermediate with a distinct thiazolium core. This compound matters for its role in synthesizing high-value, color-fast dyes and pigments, particularly for demanding technical applications. Industries requiring advanced colorants for textiles, inks, and specialty polymers will find this chemical essential for developing products with enhanced stability and performance characteristics.

Application

• Primary intermediate for the synthesis of cationic (basic) dyes and pigments.
• Key component in the production of dyes for acrylic fibers, providing excellent color fastness.
• Used in the formulation of specialized inks, including jet printing inks and security inks.
• Employed in the research and development of functional dyes for optical and electronic applications.
• Acts as a precursor for biological staining agents used in microscopy and histology.
• Potential use in the synthesis of photoactive materials and sensitizers.

Basic Information

Product Name	3-Methyl-2-[[p-(n-Methylanilino)Phenyl]Azo]Thiazolium Hydroxide
CAS No.	93941-09-4
Molecular Formula	C18H19N4OS+ • OH-
Molecular Weight	354.44 g/mol (cation)
Synonyms	3-Methyl-2-[(4-((4-methylphenyl)amino)phenyl)azo]thiazol-3-ium hydroxide; Basic Orange 42 intermediate; C.I. 48045 intermediate; 2-[[4-[(4-Methylphenyl)amino]phenyl]azo]-3-methylthiazolium hydroxide; Thiazolium, 3-methyl-2-[[p-[(p-methylphenyl)amino]phenyl]azo]-, hydroxide; Azo thiazolium dye intermediate; Cationic azo dye precursor
EINECS	Contact for details

Quality Control

Our production of 3-Methyl-2-[[p-(n-Methylanilino)Phenyl]Azo]Thiazolium Hydroxide adheres to stringent internal quality standards to ensure batch-to-batch consistency and purity for industrial synthesis. Quality is verified through multiple analytical techniques including HPLC, NMR, and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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 (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark red to brown powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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