Description

1H-Pyrazole-3-Carbonyl Chloride, 4-Nitro- (9Ci) is a high-value nitro-substituted pyrazole derivative, specifically functionalized as an acid chloride. This compound serves as a critical building block in advanced organic synthesis, enabling the efficient introduction of the 4-nitropyrazole moiety into complex molecular architectures. It is primarily utilized by research and development chemists in the pharmaceutical and agrochemical industries for the creation of novel active ingredients and intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting enzyme inhibition.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides with specific modes of action.
• Ligand and Catalyst Development: Serves as a starting material for creating specialized ligands used in coordination chemistry and catalysis.
• Material Science Research: Employed in the synthesis of functional organic molecules for advanced materials.
• Custom Synthesis and Contract Manufacturing: A vital reagent for fine chemical producers offering bespoke synthesis services.

Basic Information

Product Name	1H-Pyrazole-3-Carbonyl Chloride, 4-Nitro- (9Ci)
CAS No.	518990-55-1
Molecular Formula	C4H2ClN3O3
Molecular Weight	175.53 g/mol
Synonyms	4-Nitro-1H-pyrazole-3-carbonyl chloride; 4-Nitro-1H-pyrazole-3-carboxylic acid chloride; 4-Nitropyrazole-3-carbonyl chloride; 3-Carbonyl chloride-4-nitropyrazole; 1H-Pyrazole-3-carbonyl chloride, 4-nitro-; 4-Nitro-1H-pyrazole-3-carboxyl chloride
EINECS	Contact for details

Quality Control

Every batch of 1H-Pyrazole-3-Carbonyl Chloride, 4-Nitro- (9Ci) is manufactured and tested under strict quality management protocols. We provide comprehensive analytical data to ensure the material meets the high-purity standards required for research and process development. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is available for each lot upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	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.