Description

2-Ethoxycarbonyl-5-Ethylphenylboronic Acid Pinacol Ester is a high-purity, synthetically valuable boronic ester derivative. This compound matters as a critical protected boronic acid building block, offering enhanced stability and solubility for advanced cross-coupling reactions. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of complex organic molecules and active ingredients.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key electrophile for constructing biaryl and heterobiaryl scaffolds in drug discovery.
• Pharmaceutical Intermediate Synthesis: Used in the research and development of novel active pharmaceutical ingredients (APIs).
• Agrochemical Research: Serves as a building block for creating new herbicides, fungicides, and insecticides.
• Material Science: Potential monomer or precursor for functional polymers and organic electronic materials.
• Chemical Biology Probes: Useful for synthesizing tagged molecules for biological target identification and study.
• Process Chemistry Development: Employed in scaling up synthetic routes due to its improved handling characteristics compared to the free boronic acid.

Basic Information

Product Name	2-Ethoxycarbonyl-5-Ethylphenylboronic Acid Pinacol Ester
CAS No.	2121511-54-2
Molecular Formula	C₁₇H₂₅BO₄
Molecular Weight	304.19 g/mol
Synonyms	5-Ethyl-2-(ethoxycarbonyl)phenylboronic acid pinacol ester; (5-Ethyl-2-(ethoxycarbonyl)phenyl)boronic acid pinacol ester; 2-Carbethoxy-5-ethylphenylboronic acid pinacol ester; 2-(Ethoxycarbonyl)-5-ethylbenzeneboronic acid pinacol ester; Pinacol [2-(ethoxycarbonyl)-5-ethylphenyl]boronate; Boronic acid, B-[2-(ethoxycarbonyl)-5-ethylphenyl]-, pinacol ester; CAS 2121511-54-2
EINECS	Contact for details

Quality Control

Our 2-Ethoxycarbonyl-5-Ethylphenylboronic Acid Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) with full specification data are provided to guarantee batch-to-batch consistency and support your quality assurance protocols.

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). The compound is moisture-sensitive; keep the container tightly sealed under an inert atmosphere for long-term storage to maintain optimal purity and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (HPLC)	Conforms
Identification (NMR)	Conforms
Purity (HPLC)	≥97.0%
Water Content (KF)	≤0.5%
Residual Solvents (GC)	Meets ICH guidelines

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