Description

2-(4-(Cyclopentylthiomethyl)Phenyl)-4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane is a high-value organoboron building block, specifically a pinacol boronic ester, designed for advanced synthetic chemistry. Its core value lies in enabling efficient, selective cross-coupling reactions, which are fundamental to constructing complex molecular architectures. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and materials science industries who require reliable, high-purity intermediates for drug discovery and specialty chemical synthesis.

Application

• Pharmaceutical Intermediate: A key building block in Suzuki-Miyaura cross-coupling reactions for the synthesis of novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the research and development of advanced pesticides, herbicides, and fungicides by facilitating the introduction of the phenyl-cyclopentylthiomethyl moiety.
• Material Science Research: Serves as a precursor for creating organic electronic materials, such as those used in OLEDs and organic photovoltaics, due to its boronic ester functionality.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands and organometallic catalysts for asymmetric synthesis and other catalytic processes.
• Chemical Biology Probes: Utilized to create labeled compounds and molecular probes for studying biological pathways and target engagement.
• Custom Synthesis and Contract Manufacturing: A critical reagent for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the life sciences sector.

Basic Information

Product Name	2-(4-(Cyclopentylthiomethyl)Phenyl)-4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane
CAS No.	2246900-40-1
Molecular Formula	C18H27BO2S
Molecular Weight	318.29 g/mol
Synonyms	4-(Cyclopentylthiomethyl)phenylboronic acid pinacol ester; (4-(Cyclopentylthiomethyl)phenyl)boronic acid pinacol ester; 2-[4-(Cyclopentylsulfanylmethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4-(Cyclopentylthiomethyl)benzeneboronic acid pinacol ester; PINACOL 4-(CYCLOPENTYLTHIOMETHYL)BENZENEBORONATE
EINECS	Contact for details

Quality Control

Every batch of our 2-(4-(Cyclopentylthiomethyl)Phenyl)-4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane is produced and tested under strict quality management protocols. We ensure high purity and lot-to-lot consistency through comprehensive analytical techniques including NMR, HPLC, and GC-MS. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming identity, purity, and impurity profiles to meet your specific R&D or production requirements.

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). This compound is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and to maintain optimal stability and reactivity.

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.