Description

3-(Cyclopentyloxy)-5-Methylphenylboronic Acid is a specialized organoboron compound that serves as a critical building block in modern synthetic chemistry. Its value lies in its role as a versatile coupling partner in Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex biaryl structures. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries developing new active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in constructing complex aromatic and heteroaromatic scaffolds.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides requiring specific biphenyl motifs.
• Material Science Research: Employed in the creation of organic electronic materials, such as those for OLEDs and organic photovoltaics, where precise molecular architecture is crucial.
• Ligand and Catalyst Development: Serves as a starting material for synthesizing sophisticated ligands used in asymmetric catalysis and transition metal complexes.
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes and target engagement.
• Custom Synthesis & Contract Manufacturing: A vital reagent for fine chemical and CDMO companies offering bespoke synthesis services for client projects.

Basic Information

Product Name	3-(Cyclopentyloxy)-5-Methylphenylboronic Acid
CAS No.	1256346-07-2
Molecular Formula	C₁₂H₁₇BO₃
Molecular Weight	220.07 g/mol
Synonyms	3-Cyclopentyloxy-5-methylbenzeneboronic acid; (3-Cyclopentyloxy-5-methylphenyl)boronic acid; 5-Methyl-3-(cyclopentyloxy)benzeneboronic acid; Boronic acid, B-[3-(cyclopentyloxy)-5-methylphenyl]-; 3-Methyl-5-(cyclopentyloxy)phenylboronic acid
EINECS	Contact for details

Quality Control

Every batch of 3-(Cyclopentyloxy)-5-Methylphenylboronic Acid is manufactured under strict quality management protocols. Our products undergo rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure high purity and batch-to-batch consistency suitable for demanding synthetic applications. Certificates of Analysis (COA) detailing all specifications are provided with each shipment and are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%

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