Description

3-Methyl-5-(4,4,5,5-Tetramethyl-[1,3,2]Dioxaborolan-2-Yl)-Phenol is a high-purity, advanced pharmaceutical intermediate and versatile building block in organic synthesis. Its core value lies in the unique combination of a protected boronic ester group and a phenolic hydroxyl group, enabling precise cross-coupling reactions and further functionalization. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries who require reliable, high-quality building blocks for developing active ingredients and novel polymers.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug molecules, particularly those developed via Suzuki-Miyaura cross-coupling reactions.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and herbicides.
• Liquid Crystal & OLED Materials: Serves as a building block for creating organic electronic materials and advanced display components.
• Polymer Chemistry: Employed in the development of specialty polymers and functional materials with tailored properties.
• Chemical Research & Development: A versatile reagent for academic and industrial R&D in organic and medicinal chemistry.
• Bioconjugation & Probe Synthesis: Useful for creating labeled molecules and probes for diagnostic and biochemical applications.

Basic Information

Product Name	3-Methyl-5-(4,4,5,5-Tetramethyl-[1,3,2]Dioxaborolan-2-Yl)-Phenol
CAS No.	889659-70-5
Molecular Formula	C13H19BO3
Molecular Weight	234.10 g/mol
Synonyms	5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-3-methylphenol; 3-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol; 3-Hydroxy-5-methylphenylboronic acid pinacol ester; 3-Methyl-5-(pinacolatoboryl)phenol; Phenol, 3-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-; 889659-70-5; Boric acid, B-[3-hydroxy-5-methylphenyl]-, 1,1-dimethylethyl ester
EINECS	Contact for details

Quality Control

Our 3-Methyl-5-(4,4,5,5-Tetramethyl-[1,3,2]Dioxaborolan-2-Yl)-Phenol is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC, to ensure high purity and consistency. 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 room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

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.