Description

1-Cyclopentyl-1H-Pyrazole-4-Boronic Acid is a high-purity boronic acid derivative, a critical building block in modern synthetic organic chemistry. Its value lies in its role as a versatile coupling partner in Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex biaryl and heterobiaryl structures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries, particularly in the development of active pharmaceutical ingredients (APIs) and advanced functional molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, especially those containing pyrazole and cyclopentyl motifs for therapeutic applications.
• Suzuki-Miyaura Cross-Coupling Reagent: Serves as a pivotal boronic acid component for forming carbon-carbon bonds in the production of complex organic molecules.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with tailored biological activity.
• Material Science & OLED Development: Employed in the synthesis of organic semiconductors, ligands for catalysts, and emissive layers for electronic devices.
• Chemical Biology & Probe Synthesis: Facilitates the creation of molecular probes and labeled compounds for biochemical and diagnostic research.
• Custom Synthesis & Contract Manufacturing: A fundamental starting material for custom synthesis projects requiring specific, functionalized heterocyclic architectures.

Basic Information

Product Name	1-Cyclopentyl-1H-Pyrazole-4-Boronic Acid
CAS No.	1416786-06-5
Molecular Formula	C8H13BN2O2
Molecular Weight	180.02 g/mol
Synonyms	(1-Cyclopentyl-1H-pyrazol-4-yl)boronic acid; 1-Cyclopentyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; 1-Cyclopentyl-1H-pyrazole-4-boronic acid pinacol ester; 4-Borono-1-cyclopentylpyrazole; 1-Cyclopentylpyrazole-4-boronic Acid; CPBA (context-specific abbreviation); B-(1-Cyclopentyl-1H-pyrazol-4-yl)boronic acid
EINECS	Contact for details

Quality Control

Our 1-Cyclopentyl-1H-Pyrazole-4-Boronic Acid is manufactured under strict quality management protocols. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high chemical purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles 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). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) when possible to maintain stability and prevent degradation. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%

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