Description

Pyrazole-3(Or 5)-Carboxylic Acid, 5(Or 3)-Borono- (7Ci) is a high-value boronic acid derivative of pyrazolecarboxylic acid, serving as a sophisticated bifunctional building block in advanced organic synthesis. Its core value lies in enabling the precise construction of complex molecules through Suzuki-Miyaura cross-coupling and other metal-catalyzed reactions. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries developing new active ingredients, particularly for targeted therapies and crop protection agents.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), especially for kinase inhibitors and other targeted small-molecule drugs.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with improved efficacy and selectivity.
• Material Science: Serves as a monomer or cross-linking agent in the creation of advanced polymers and functional materials, such as metal-organic frameworks (MOFs).
• Chemical Biology & Proteomics: Employed as a tool compound or linker in the design of chemical probes for studying enzyme function and protein interactions.
• Catalyst Ligand Synthesis: Utilized to prepare specialized ligands for transition metal catalysts used in asymmetric synthesis.
• Diagnostic Reagent Development: Acts as a building block for fluorescent tags and other molecular imaging agents.

Basic Information

Product Name	Pyrazole-3(Or 5)-Carboxylic Acid, 5(Or 3)-Borono- (7Ci)
CAS No.	90567-45-6
Molecular Formula	C4H5BN2O4
Molecular Weight	155.91 g/mol
Synonyms	5-Borono-1H-pyrazole-3-carboxylic acid; 3-Borono-1H-pyrazole-5-carboxylic acid; 1H-Pyrazole-3-carboxylic acid, 5-borono-; 1H-Pyrazole-5-carboxylic acid, 3-borono-; Pyrazole-3,5-dicarboxylic acid mono boronic acid; Boronic acid, B-(3-carboxy-1H-pyrazol-5-yl)-; (3-Carboxy-1H-pyrazol-5-yl)boronic acid
EINECS	Contact for details

Quality Control

Every batch of Pyrazole-3(Or 5)-Carboxylic Acid, 5(Or 3)-Borono- (7Ci) undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our quality management system is designed to meet the stringent requirements of research and pre-clinical development. A comprehensive Certificate of Analysis (COA) detailing results from NMR, HPLC, and elemental analysis is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and must be handled under a dry inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep the container tightly sealed in a desiccator when not in use.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥95% (Area %)
Water Content (KF)	≤2.0%
Heavy Metals	≤20 ppm

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