Description

3-Methyl-1-(4'-Sulfoamidophenyl)-5-Pyrazolone is a specialized organic intermediate featuring a pyrazolone core substituted with a methyl group and a sulfonamidophenyl moiety. This unique structure makes it a valuable building block for synthesizing more complex molecules, particularly in the pharmaceutical and fine chemical industries. It is primarily sought after by R&D chemists and process development teams for the creation of novel active pharmaceutical ingredients (APIs), dyes, and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Dye and Pigment Manufacturing: Serves as a core structure for producing azo dyes and other colorants with specific light-fastness and hue properties.
• Fine Chemical Synthesis: Used as a versatile building block in organic synthesis for creating complex heterocyclic compounds.
• Research & Development: Essential compound for academic and industrial research in medicinal chemistry and material science.
• Agrochemical Development: Potential intermediate in the synthesis of novel pesticides or plant growth regulators.
• Photographic Chemicals: Can be utilized in the formulation of certain photographic developers and sensitizers.

Basic Information

Product Name	3-Methyl-1-(4'-Sulfoamidophenyl)-5-Pyrazolone
CAS No.	13269-73-3
Molecular Formula	C10H11N3O3S
Molecular Weight	253.28 g/mol
Synonyms	3-Methyl-1-(p-sulfamoylphenyl)-5-pyrazolone; 1-(4-Sulfamoylphenyl)-3-methyl-5-pyrazolone; 5-Pyrazolone, 3-methyl-1-[4-(aminosulfonyl)phenyl]-; 3-Methyl-1-(4-sulfonamidophenyl)-2-pyrazolin-5-one; 1-(4-Sulfamoylphenyl)-3-methyl-1H-pyrazol-5(4H)-one; 4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)benzenesulfonamide
EINECS	Contact for details

Quality Control

Our 3-Methyl-1-(4'-Sulfoamidophenyl)-5-Pyrazolone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment. We can support development and production needs across various grades, from technical to high-purity research standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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