Description

5-[[4'-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-3-Methylsalicylic Acid, Sodium Salt is a high-purity, water-soluble azo dye intermediate known for its excellent color strength and stability. This compound is critical for manufacturers requiring precise and consistent chromophore synthesis for advanced applications. It is primarily utilized by producers in the specialty dyes, pigments, and high-performance ink industries seeking reliable quality and supply chain security.

Application

• Synthesis of Reactive Dyes: A key intermediate for producing high-value reactive dyes used in textile coloring, particularly for cotton and cellulose fibers.
• Manufacture of Acid Dyes: Used in the production of acid dyes for coloring nylon, silk, wool, and leather with good wash and light fastness.
• Pigment Production: Serves as a precursor in the manufacturing of high-performance organic pigments for inks, coatings, and plastics.
• Specialty Ink Formulations: Employed in the development of specialized inks for digital printing, security printing, and other advanced graphic arts applications.
• Research & Development: Used in chemical R&D laboratories for developing new chromophores and studying azo dye chemistry and properties.
• Analytical Chemistry: Can be utilized as a standard or reagent in analytical methods for dye identification and quantification.

Basic Information

Item	Details
Product Name	5-[[4'-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-3-Methylsalicylic Acid, Sodium Salt
CAS No.	94109-00-9
Molecular Formula	C30H22N6NaO7S
Molecular Weight	633.59 g/mol
Synonyms	Acid Yellow 219 (C.I. 18995); Sodium 5-[(E)-[4-[(E)-[5-hydroxy-1-(4-sulfonatophenyl)-3-methyl-4-pyrazolyl]diazenyl]biphenyl-4-yl]diazenyl]-3-methylsalicylate; C.I. Acid Yellow 219; 5-[[4'-[[4,5-Dihydro-3-methyl-5-oxo-1-(4-sulfophenyl)-1H-pyrazol-4-yl]azo][1,1'-biphenyl]-4-yl]azo]-3-methylsalicylic acid sodium salt; 18995 (Colour Index); Acid Yellow 219, Sodium Salt
EINECS	Contact for details

Quality Control

Our production of 5-[[4'-[[4,5-Dihydro-3-Methyl-5-Oxo-1-(4-Sulphophenyl)-1H-Pyrazol-4-Yl]Azo][1,1'-Biphenyl]-4-Yl]Azo]-3-Methylsalicylic Acid, Sodium Salt adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting industry specifications. A detailed Certificate of Analysis (COA) documenting purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and consistency for our B2B clients.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Water Solubility	Freely soluble

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