Description

3-Methoxy-1-Methyl-4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole is a high-value, multi-functional heterocyclic boronic ester derivative, serving as a critical building block in modern synthetic chemistry. Its core value lies in enabling efficient, selective cross-coupling reactions, which are fundamental for constructing complex molecular architectures. This advanced intermediate is essential for research and development in the pharmaceutical and agrochemical industries, particularly for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in Suzuki-Miyaura cross-coupling reactions for synthesizing novel drug candidates, especially in kinase inhibitor and antiviral research.
• Agrochemical Synthesis: Used to construct complex pyrazole-based molecules for developing new herbicides, fungicides, and insecticides with improved efficacy.
• Material Science Research: Serves as a functional monomer or linker in the development of organic electronic materials, such as OLEDs and conductive polymers.
• Chemical Biology Probes: Employed in the synthesis of bioconjugates and molecular probes for target identification and validation studies.
• Process Chemistry & Scale-up: Provides a reliable and stable boronate source for large-scale manufacturing of fine chemicals and active pharmaceutical ingredients (APIs).

Basic Information

Item	Details
Product Name	3-Methoxy-1-Methyl-4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole
CAS No.	1911653-28-5
Molecular Formula	C11H19BN2O3
Molecular Weight	238.10 g/mol
Synonyms	1-Methyl-3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; 1-Methyl-3-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole; 3-Methoxy-1-methyl-1H-pyrazole-4-boronic acid pinacol ester; 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-methoxy-1-methyl-1H-pyrazole; 1-Methyl-3-methoxy-4-pyrazoleboronic acid pinacol ester
EINECS	Contact for details

Quality Control

Our 3-Methoxy-1-Methyl-4-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-1H-Pyrazole is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep the container sealed to protect from moisture. Store away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
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.