Description

1-(3-Sulfo-4-Phenoxy)-Phenyl-3-Heptadecyl-Pyrazoline-5-One is a specialized organic compound belonging to the pyrazolone class, valued for its unique structural features that impart specific functional properties. This chemical is particularly significant for its role as a high-performance intermediate in the synthesis of advanced materials and functional additives. It is primarily sought by manufacturers in the dyes and pigments, polymer stabilizers, and specialty chemical synthesis sectors for developing products with enhanced performance characteristics.

Application

• As a key intermediate in the synthesis of high-grade, light-fast azo dyes and pigments for textiles and plastics.
• As a functional monomer or additive in the production of polymer stabilizers and UV absorbers to enhance material durability.
• In the manufacture of specialty surfactants and dispersants for industrial formulations.
• As a building block for pharmaceutical and agrochemical intermediates, leveraging its sulfonated phenoxy structure.
• In research and development for novel optical materials and sensors due to its conjugated pyrazolone core.
• For the synthesis of corrosion inhibitors and metal complexing agents in industrial fluid systems.

Basic Information

Product Name	1-(3-Sulfo-4-Phenoxy)-Phenyl-3-Heptadecyl-Pyrazoline-5-One
CAS No.	4971-48-6
Molecular Formula	C29H40N2O5S
Molecular Weight	528.70 g/mol
Synonyms	3-Heptadecyl-1-[4-(3-sulfophenoxy)phenyl]-2-pyrazolin-5-one; 1-(4-(3-Sulfophenoxy)phenyl)-3-heptadecyl-5-pyrazolone; 3-Heptadecyl-1-(3-sulfo-4-phenoxyphenyl)-5-pyrazolone; Pyrazolone derivative CAS 4971-48-6; Light stabilizer intermediate 4971-48-6; Sulfonated phenoxy pyrazolone; Heptadecyl pyrazolone sulfonate
EINECS	Contact for details

Quality Control

Our production of 1-(3-Sulfo-4-Phenoxy)-Phenyl-3-Heptadecyl-Pyrazoline-5-One adheres to a stringent quality management system to ensure batch-to-batch consistency and reliability. Every lot undergoes comprehensive analytical testing, including HPLC for purity, IR for structural identification, and loss on drying to confirm specifications. A detailed Certificate of Analysis (COA) documenting all test results is provided with each shipment to support your quality assurance protocols.

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 sealed when not in use to prevent absorption of atmospheric moisture, which may affect product stability and performance.

Specification

Item	Specification
Appearance	Light yellow to beige powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfonate Content (Titration)	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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