Description

1,5-Dimethyl-1H-Pyrazole-4-Boronic Acid,Pinacol Ester is a high-purity, protected boronic acid derivative essential for modern synthetic chemistry. This compound matters as a critical building block in cross-coupling reactions, enabling the efficient construction of complex molecules for advanced material and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries. The product is supplied with a guaranteed Certificate of Analysis to ensure batch-to-batch consistency and reliability for your sensitive applications.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key reagent for forming carbon-carbon bonds in the synthesis of complex organic molecules and heterocycles.
• Pharmaceutical Intermediate: Used in the research and development of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Serves as a building block for creating novel herbicides, fungicides, and insecticides.
• Material Science Research: Employed in the development of organic electronic materials, such as OLEDs and semiconductors.
• Ligand and Catalyst Development: Useful for synthesizing novel ligands for metal catalysis and organometallic complexes.
• Chemical Biology Probes: Facilitates the creation of molecular probes for studying biological processes and target identification.

Basic Information

Item	Details
Product Name	1,5-Dimethyl-1H-Pyrazole-4-Boronic Acid,Pinacol Ester
CAS No.	1036991-40-8
Molecular Formula	C11H19BN2O2
Molecular Weight	222.10 g/mol
Synonyms	4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,5-dimethyl-1H-pyrazole; 1,5-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; 1,5-Dimethyl-1H-pyrazole-4-boronic acid pinacol ester; 1,5-Dimethyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole; Pyrazole-4-boronic acid pinacol ester, 1,5-dimethyl-; B-(1,5-Dimethyl-1H-pyrazol-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
EINECS	Contact for details

Quality Control

Our 1,5-Dimethyl-1H-Pyrazole-4-Boronic Acid,Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure compliance with high-purity standards for research and development. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and performance consistency in your critical synthetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C or as specified on the label or COA. The material is easily oxidized and light-sensitive. Allow the sealed container to reach ambient temperature before opening to prevent moisture condensation.

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)	≤0.5%

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