Description

4-[(1-Butyl-5-Cyano-1,6-Dihydro-2-Hydroxy-4-Methyl-6-Oxo-3-Pyridyl)Azo]-n-(2-Ethylhexyl)Benzenesulphonamide is a specialized azo dye intermediate valued for its precise chromophoric structure and functional group compatibility. This compound is engineered to deliver consistent color properties and performance in demanding industrial formulations. It is primarily required by manufacturers in the pigments, dyes, and specialty chemical sectors for producing high-performance colorants.

Application

• Key intermediate for the synthesis of high-performance azo pigments and dyes.
• Used in the manufacturing of colorants for plastics and polymer masterbatches.
• Potential precursor for specialty dyes in inks and coatings applications.
• Research and development of novel functional dyes with specific light-absorption properties.
• Fine chemical synthesis in pharmaceutical and agrochemical research where specific chromophores are required.

Basic Information

Product Name	4-[(1-Butyl-5-Cyano-1,6-Dihydro-2-Hydroxy-4-Methyl-6-Oxo-3-Pyridyl)Azo]-n-(2-Ethylhexyl)Benzenesulphonamide
CAS No.	55290-62-5
Molecular Formula	C25H33N5O4S
Molecular Weight	499.63 g/mol
Synonyms	Benzenesulfonamide, 4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)-; Pigment Yellow 185; PY 185; C.I. 56280; 4-[(1-Butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]-N-(2-ethylhexyl)benzenesulfonamide; 2-Ethylhexyl 4-[(1-butyl-5-cyano-1,6-dihydro-2-hydroxy-4-methyl-6-oxo-3-pyridinyl)azo]benzenesulfonate (common misnomer); Azo dye intermediate 55290-62-5
EINECS	Contact for details

Quality Control

Our production of this advanced intermediate adheres to strict quality control protocols to ensure batch-to-batch consistency and purity. Every lot is analyzed using modern analytical techniques, including HPLC and spectroscopic methods. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory 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). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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