Description

4-Hydroxypyrazole is a versatile heterocyclic building block and key intermediate in advanced organic synthesis. Its unique structure, featuring both a pyrazole ring and a hydroxyl group, makes it a critical precursor for developing active pharmaceutical ingredients (APIs) and specialty fine chemicals. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to create novel compounds with targeted biological or functional properties.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in areas like kinase inhibitors, anti-inflammatory agents, and central nervous system (CNS) drugs.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and plant growth regulators.
• Coordination Chemistry & Ligand Design: Serves as a chelating ligand or precursor for metal-organic frameworks (MOFs) and catalysts.
• Material Science Research: Employed in the synthesis of organic electronic materials, polymers, and dyes.
• Biochemical Research: Used as a core structure in probe and inhibitor design for enzymatic studies.
• Custom Synthesis & Contract Manufacturing: A fundamental building block for custom chemical synthesis services targeting specialized client needs.

Basic Information

Product Name	4-Hydroxypyrazole
CAS No.	4843-98-5
Molecular Formula	C3H4N2O
Molecular Weight	84.08 g/mol
Synonyms	1H-Pyrazol-4-ol; 4-Pyrazolol; Pyrazol-4-ol; 4-Hydroxy-1H-pyrazole; 1H-Pyrazole-4-ol; 4-Hydroxypyrazole; 4-Pyrazolone (tautomer)
EINECS	Contact for details

Quality Control

Our 4-Hydroxypyrazole is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (IR, NMR), to ensure it meets exacting standards for research and industrial use. Certificates of Analysis (COA) are provided with every shipment, detailing all relevant specifications. We adhere to cGMP principles where applicable to support our clients in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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