Description

1H-Pyrazole-1-Carboxylic Acid, 2,5-Dihydro-4-Methoxy-3-Methyl-5-Oxo-, Methyl Ester is a specialized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a key intermediate for constructing complex molecular architectures, particularly in the pharmaceutical and agrochemical sectors. It is primarily needed by research chemists and process development scientists working on novel active ingredients, where its unique pyrazole core offers a versatile scaffold for further functionalization.

Application

• Pharmaceutical Intermediate: Serves as a critical precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and metabolic diseases.
• Agrochemical Research: Used in the development of next-generation herbicides and insecticides, leveraging its heterocyclic structure for bioactivity.
• Chemical Biology Probe Synthesis: Employed in creating specialized molecular tools for studying enzyme function and biological pathways.
• Material Science Precursor: Acts as a building block for synthesizing functionalized polymers and ligands for metal-organic frameworks (MOFs).
• Academic & Contract Research: Essential for methodological development and exploratory chemistry in university and CRO (Contract Research Organization) laboratories.

Basic Information

Product Name	1H-Pyrazole-1-Carboxylic Acid, 2,5-Dihydro-4-Methoxy-3-Methyl-5-Oxo-, Methyl Ester
CAS No.	190257-06-8
Molecular Formula	C8H10N2O4
Molecular Weight	198.18 g/mol
Synonyms	Methyl 4-methoxy-3-methyl-5-oxo-2,5-dihydro-1H-pyrazole-1-carboxylate; 1-Carbomethoxy-4-methoxy-3-methyl-5-pyrazolone; 4-Methoxy-3-methyl-1-pyrazolylcarboxylic acid methyl ester; 5-Oxo-4-methoxy-3-methyl-2,5-dihydro-1H-pyrazole-1-carboxylic acid methyl ester; 1H-Pyrazole-1-carboxylic acid, 2,5-dihydro-4-methoxy-3-methyl-5-oxo-, methyl ester; Methyl 2,5-dihydro-4-methoxy-3-methyl-5-oxo-1H-pyrazole-1-carboxylate
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-1-Carboxylic Acid, 2,5-Dihydro-4-Methoxy-3-Methyl-5-Oxo-, Methyl Ester is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment 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 place at room temperature (15-25°C). Keep away from strong bases and incompatible organic solvents. For long-term storage, consider inert gas purging to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Purity (HPLC, Area %)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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