Description

5-Hydroxy-1-Methyl-1H-Pyrazole-3-Carboxylic Acid is a versatile pyrazole derivative that serves as a critical building block in advanced organic synthesis. Its unique heterocyclic structure, featuring both carboxylic acid and hydroxyl functional groups, makes it a valuable intermediate for creating complex molecules with tailored properties. This compound is essential for R&D and production chemists in the pharmaceutical and agrochemical industries, where it is used to develop new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and metabolic diseases.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and plant growth regulators due to its bioactive pyrazole core.
• Coordination Chemistry & Ligand Design: Serves as a chelating ligand for metal ions, useful in catalysis and materials science applications.
• Fine Chemical Production: Employed in the manufacture of dyes, pigments, and other specialty chemicals requiring a functionalized heterocyclic scaffold.
• Academic & Industrial Research: A valuable reagent for exploring new chemical reactions and developing novel heterocyclic compounds in R&D laboratories.

Basic Information

Product Name	5-Hydroxy-1-Methyl-1H-Pyrazole-3-Carboxylic Acid
CAS No.	58364-97-9
Molecular Formula	C5H6N2O3
Molecular Weight	142.11 g/mol
Synonyms	1-Methyl-5-hydroxy-1H-pyrazole-3-carboxylic acid; 5-Hydroxy-1-methylpyrazole-3-carboxylic acid; 3-Carboxy-1-methyl-5-hydroxypyrazole; 1-Methyl-1H-pyrazole-5-ol-3-carboxylic acid; 5-Hydroxy-1-methyl-1H-pyrazole-3-carboxylate; 58364-97-9; 5-Hydroxy-1-methylpyrazole-3-carboxylate
EINECS	Contact for details

Quality Control

Our 5-Hydroxy-1-Methyl-1H-Pyrazole-3-Carboxylic Acid is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with each shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates for regulated industries.

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 nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

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

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