Description

1H-Pyrazole-5-Carbonylchloride,1-(Cyclopropylmethyl)-3-Methyl-(9Ci) is a versatile and reactive pyrazole-based acid chloride intermediate. This compound is valued for its role in the synthesis of more complex heterocyclic molecules, particularly in pharmaceutical research and development. It is primarily sought by R&D chemists and process development scientists in the fine chemical and pharmaceutical industries for constructing novel active pharmaceutical ingredients (APIs) and agrochemicals.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging the pyrazole core's bioactivity.
• Material Science Research: Serves as a precursor for creating specialized polymers or ligands with unique chemical properties.
• Chemical Biology & Proteomics: Can be utilized as a reactive handle for bioconjugation or as a scaffold in probe development for studying biological systems.
• Academic & Contract Research: Employed in university and CRO laboratories for methodological development and exploratory synthetic chemistry.

Basic Information

Product Name	1H-Pyrazole-5-Carbonylchloride,1-(Cyclopropylmethyl)-3-Methyl-(9Ci)
CAS No.	143469-42-5
Molecular Formula	C9H11ClN2O
Molecular Weight	198.65 g/mol
Synonyms	1-(Cyclopropylmethyl)-3-methyl-1H-pyrazole-5-carbonyl chloride; 1-(Cyclopropylmethyl)-3-methyl-1H-pyrazole-5-carboxylic acid chloride; 1-(Cyclopropylmethyl)-3-methylpyrazole-5-carbonyl chloride; 1-Cyclopropylmethyl-3-methyl-1H-pyrazole-5-carboxylic acid chloride; 1H-Pyrazole-5-carbonylchloride, 1-(cyclopropylmethyl)-3-methyl- (9CI); 143469-42-5; 1-(Cyclopropylmethyl)-3-methyl-1H-pyrazole-5-carbonylchloride
EINECS	Contact for details

Quality Control

Our 1H-Pyrazole-5-Carbonylchloride,1-(Cyclopropylmethyl)-3-Methyl-(9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure high purity and consistent chemical identity. Certificates of Analysis (COA) detailing all specifications are 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 at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from strong acids and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 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.