Description

4-(5-Methyl-3-Nitro-Pyrazol-1-Yl)-Butyryl Chloride is a high-purity, reactive chemical intermediate featuring a pyrazole ring functionalized with a butyryl chloride group. This compound is valued for its role as a key building block in the synthesis of more complex molecules, particularly in pharmaceutical research and development. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for constructing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing functionalized pyrazole scaffolds.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides where the nitro-pyrazole moiety is a key pharmacophore.
• Chemical Research & Development: Serves as a versatile building block in medicinal chemistry for creating compound libraries and exploring new chemical entities.
• Specialty Chemical Manufacturing: Employed in the production of dyes, pigments, and other performance chemicals requiring specific heterocyclic structures.
• Material Science: Potential use in the synthesis of advanced polymers or ligands for catalytic systems.

Basic Information

Item	Details
Product Name	4-(5-Methyl-3-Nitro-Pyrazol-1-Yl)-Butyryl Chloride
CAS No.	1006459-08-0
Molecular Formula	C8H10ClN3O3
Molecular Weight	231.64 g/mol
Synonyms	1-(4-Chlorobutanoyl)-5-methyl-3-nitropyrazole; 4-(5-Methyl-3-nitropyrazol-1-yl)butanoyl chloride; Butanoyl chloride, 4-(5-methyl-3-nitro-1H-pyrazol-1-yl)-; 5-Methyl-3-nitro-1-(4-chlorobutanoyl)pyrazole; 4-(5-Methyl-3-nitro-1H-pyrazol-1-yl)butanoyl chloride
EINECS	Contact for details

Quality Control

Our production of 4-(5-Methyl-3-Nitro-Pyrazol-1-Yl)-Butyryl Chloride adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every 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. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Light yellow to yellow solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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