Description

7-(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl)-4-Hydroxynaphthalene-2-Sulphonic Acid is a specialized organic intermediate featuring a naphthalene core functionalized with a pyrazolone moiety and a sulfonic acid group. This unique molecular architecture makes it a valuable precursor for synthesizing high-performance dyes, pigments, and functional colorants. It is primarily sought by manufacturers in the chemical synthesis, specialty dyes, and advanced materials sectors for its role in creating compounds with specific optical and chemical properties.

Application

• Dye and Pigment Intermediate: A key building block in the synthesis of azo dyes, acid dyes, and reactive dyes for textiles, leather, and paper.
• Functional Colorant Production: Used in the manufacture of colorants with enhanced properties such as lightfastness and thermal stability for plastics and coatings.
• Chemical Synthesis: Serves as a versatile intermediate for creating more complex heterocyclic compounds in pharmaceutical and agrochemical research.
• Analytical Reagent: Potential use as a chromogenic agent or a standard in analytical chemistry for detection methods.
• Research & Development: Employed in academic and industrial R&D for exploring new organic materials and photonic applications.

Basic Information

Product Name	7-(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl)-4-Hydroxynaphthalene-2-Sulphonic Acid
CAS No.	85136-68-1
Molecular Formula	C₁₄H₁₂N₂O₅S
Molecular Weight	320.32 g/mol
Synonyms	4-Hydroxy-7-(3-methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)naphthalene-2-sulfonic acid; 7-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)-4-hydroxynaphthalene-2-sulfonic acid; 1H-Pyrazole-1-acetic acid, 4,5-dihydro-3-methyl-5-oxo-, 7-hydroxy-2-naphthalenesulfonate; Naphthalenesulfonic acid, 7-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-4-hydroxy-
EINECS	Contact for details

Quality Control

Our production of 7-(4,5-Dihydro-3-Methyl-5-Oxo-1H-Pyrazol-1-Yl)-4-Hydroxynaphthalene-2-Sulphonic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency meet the high standards required for industrial synthesis. Certificates of Analysis (COA) detailing specific test results are provided with each shipment and are available upon request.

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 tightly sealed to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Light yellow to brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 3.0%

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