Description

Sodium Hydrogen 5-[[2-[4-[[4-(Dimethylamino)Phenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]-4-Sulphonatophenyl]Sulphonyl]Salicylate is a high-purity, water-soluble organic salt belonging to a specialized class of functionalized pyrazolone derivatives. This compound is valued for its unique molecular structure, which imparts specific chromophoric and complexing properties critical for advanced technical applications. It serves as a key intermediate and functional additive for industries requiring precise chemical performance in areas such as analytical chemistry and specialty material synthesis.

Application

• Analytical Reagent: Used as a sensitive chromogenic agent or complexometric indicator in spectrophotometric analysis for the detection and quantification of specific metal ions.
• Chemical Intermediate: Serves as a crucial building block in the synthesis of more complex dyes, pigments, and functional organic molecules.
• Research & Development: Employed in academic and industrial R&D laboratories for studying reaction mechanisms, developing new analytical methods, and creating novel materials.
• Specialty Dye Synthesis: Acts as a precursor in the manufacture of specialized azo dyes and other colorants with specific light-absorption characteristics.
• Photographic Chemicals: Potential use in the formulation of specialized photographic chemicals and sensitizers.
• Chelating Agent: Functions as a ligand capable of forming stable complexes with certain metal cations in solution.

Basic Information

Product Name	Sodium Hydrogen 5-[[2-[4-[[4-(Dimethylamino)Phenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]-4-Sulphonatophenyl]Sulphonyl]Salicylate
CAS No.	24221-19-0
Molecular Formula	C26H22N3NaO9S2
Molecular Weight	607.58 g/mol
Synonyms	5-[[2-[4-[[4-(Dimethylamino)phenyl]methylene]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]-4-sulfophenyl]sulfonyl]-2-hydroxybenzoic acid, monosodium salt; Sodium 5-[(2-{4-[(E)-[4-(dimethylamino)phenyl]methylidene]-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl}-4-sulfonatophenyl)sulfonyl]-2-hydroxybenzoate; 4-[4-(Dimethylamino)benzylidene]-3-methyl-1-[4-(sodiosulfo)-2-[(2-carboxy-4-hydroxyphenyl)sulfonyl]phenyl]-2-pyrazolin-5-one; Acid Chrome Blue K; Mordant Blue 1 (related class).
EINECS	Contact for details

Quality Control

Our Sodium Hydrogen 5-[[2-[4-[[4-(Dimethylamino)Phenyl]Methylene]-4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl]-4-Sulphonatophenyl]Sulphonyl]Salicylate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications such as assay, impurity profile, and physical properties is provided with every shipment to guarantee compliance with your technical requirements.

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 tightly sealed after each use to prevent absorption of atmospheric moisture, which may affect product stability and performance.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
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.