Description

2-(3-Ethoxycarbonyl-5-Oxo-2-Pyrazolin-1-Yl)Ethanesulfonic Acid Sodium Salt is a high-purity, water-soluble organic salt with a defined heterocyclic structure. This compound is valued for its role as a versatile synthetic intermediate and functional additive in advanced chemical synthesis. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for the development of active ingredients and performance materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those with pyrazolone or sulfonate moieties.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Chemical Research & Development: Serves as a critical reagent in organic synthesis for constructing complex heterocyclic frameworks.
• Specialty Polymer Additive: Potential application as a functional monomer or cross-linking agent to impart specific ionic or solubility properties to polymers.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized colorants and photographic chemicals.
• Bioconjugation Chemistry: Employed in the development of linkers and probes for biochemical and diagnostic applications.

Basic Information

Product Name	2-(3-Ethoxycarbonyl-5-Oxo-2-Pyrazolin-1-Yl)Ethanesulfonic Acid Sodium Salt
CAS No.	55586-66-8
Molecular Formula	C9H11N2O7SNa
Molecular Weight	314.25 g/mol
Synonyms	Sodium 2-(3-ethoxycarbonyl-5-oxo-2-pyrazolin-1-yl)ethanesulfonate; 1-(2-Sulfoethyl)-3-carbethoxy-5-pyrazolone sodium salt; 3-Carbethoxy-1-(2-sulfoethyl)-5-pyrazolone sodium salt; Ethyl 1-(2-sulfoethyl)-5-oxo-2-pyrazoline-3-carboxylate sodium salt; 2-(3-Ethoxycarbonyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)ethanesulfonic acid sodium salt; 55586-66-8; 1-(2-Sulfoethyl)-3-ethoxycarbonyl-5-pyrazolone sodium salt
EINECS	Contact for details

Quality Control

Our 2-(3-Ethoxycarbonyl-5-Oxo-2-Pyrazolin-1-Yl)Ethanesulfonic Acid Sodium Salt is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications and test results is provided with every 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 controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
pH (5% aqueous solution)	6.0 - 8.0

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