Description

5-Tributylstannyl-1H-Pyrazole-3-Carboxylic Acid Ethyl Ester is a specialized organotin intermediate featuring a reactive pyrazole core. This compound is critical for advanced organic synthesis, particularly in the construction of complex molecules where precise metal-mediated coupling is required. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of novel drug candidates, particularly in cross-coupling reactions (e.g., Stille coupling) to introduce the pyrazole moiety.
• Agrochemical Research: Used in the development of new pesticides and herbicides, where the organotin group facilitates the creation of complex molecular architectures.
• Material Science: Employed in the research and development of advanced organic materials, including ligands for catalysis and functional polymers.
• Chemical Synthesis: Acts as a versatile reagent for introducing the 5-tributylstannyl-1H-pyrazole-3-carboxylate group into target molecules under mild conditions.
• Academic & Industrial R&D: A valuable tool for methodological development in organometallic chemistry and synthetic methodology research.

Basic Information

Product Name	5-Tributylstannyl-1H-Pyrazole-3-Carboxylic Acid Ethyl Ester
CAS No.	141998-85-8
Molecular Formula	C18H34N2O2Sn
Molecular Weight	429.18 g/mol
Synonyms	Ethyl 5-(Tributylstannyl)-1H-pyrazole-3-carboxylate; 1H-Pyrazole-3-carboxylic acid, 5-(tributylstannyl)-, ethyl ester; 5-Tributylstannyl-1H-pyrazole-3-carboxylic acid ethyl ester; Tributyl(5-ethoxycarbonyl-1H-pyrazol-3-yl)stannane; Ethyl 5-tributylstannanyl-1H-pyrazole-3-carboxylate
EINECS	Contact for details

Quality Control

Our 5-Tributylstannyl-1H-Pyrazole-3-Carboxylic Acid Ethyl Ester is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is analyzed using advanced techniques including NMR, HPLC, and elemental analysis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance requirements.

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). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation and moisture uptake. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95%
Tin (Sn) Content	27.0 - 28.0 %

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