Description

2-(4-(3-Methyl-5-Oxo-4,5-Dihydropyrazol-1-Yl)Phenylsulfonyl)Ethyl Hydrogen Sulfate is a specialized organic intermediate featuring a reactive sulfate ester group linked to a pyrazolone-sulfone core. This compound matters for its role as a key building block in the synthesis of advanced functional materials and active pharmaceutical ingredients (APIs). Industries requiring high-purity synthetic intermediates, particularly in pharmaceutical research, agrochemical development, and specialty dye manufacturing, will find this product essential for their complex synthesis pathways.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those targeting anti-inflammatory or analgesic pathways.
• Agrochemical Synthesis: Used in the production of advanced herbicides and plant growth regulators, leveraging its reactive sulfate moiety.
• Dye and Pigment Manufacturing: Serves as a key component for creating sulfonated azo dyes and other colorants with enhanced solubility and fastness properties.
• Polymer Modification: Acts as a functional monomer or cross-linking agent to introduce sulfonate groups into polymers, improving hydrophilicity and ionic character.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new organic reactions and constructing complex heterocyclic systems.
• Liquid Crystal & Electronic Material Precursor: Utilized in the synthesis of specialty chemicals for electronic applications due to its specific molecular architecture.

Basic Information

Product Name	2-(4-(3-Methyl-5-Oxo-4,5-Dihydropyrazol-1-Yl)Phenylsulfonyl)Ethyl Hydrogen Sulfate
CAS No.	70616-72-7
Molecular Formula	C₁₂H₁₄N₂O₆S₂
Molecular Weight	346.38 g/mol
Synonyms	2-[4-(3-Methyl-5-oxo-4,5-dihydro-1H-pyrazol-1-yl)phenylsulfonyl]ethyl hydrogen sulfate; 1-[4-(2-Sulfooxyethylsulfonyl)phenyl]-3-methyl-2-pyrazolin-5-one; Ethanol, 2-[[4-(3-methyl-5-oxo-1H-pyrazol-1-yl)phenyl]sulfonyl]-, hydrogen sulfate (ester); Reactive intermediate 70616-72-7; Pyrazolone sulfonate ester; 1-(4-(2-(Sulfato)ethylsulfonyl)phenyl)-3-methyl-5-pyrazolone
EINECS	Contact for details

Quality Control

Our production of 2-(4-(3-Methyl-5-Oxo-4,5-Dihydropyrazol-1-Yl)Phenylsulfonyl)Ethyl Hydrogen Sulfate adheres to stringent quality protocols to ensure batch-to-batch consistency and reliability for your synthesis. Each lot undergoes rigorous analytical testing, including HPLC for purity and identity confirmation. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). The compound may be hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed to exclude moisture.

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	≤ 0.5%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%, Total impurities ≤ 2.0%

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