Description

4-Carboxymethyl-Phenylboronic Acid is a versatile bifunctional organoboron compound that serves as a critical building block in modern synthetic chemistry. Its molecular structure, featuring both a boronic acid and a carboxylic acid functional group, makes it an invaluable reagent for constructing complex molecules through cross-coupling and conjugation reactions. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries who require reliable, high-quality raw materials for advanced R&D and production.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs utilizing Suzuki-Miyaura cross-coupling reactions.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides that require specific phenylboronic acid derivatives.
• Material Science & Polymer Chemistry: Serves as a monomer or functionalization agent for creating advanced polymers, dendrimers, and organic frameworks with tailored properties.
• Bioconjugation & Probe Development: Utilized in the design of diagnostic probes, biosensors, and antibody-drug conjugates (ADCs) due to its ability to form stable bonds with diols and other functional groups.
• Organic Synthesis & Catalysis: Acts as a versatile handle in multi-step organic synthesis for constructing complex aromatic and heterocyclic compounds.
• Ligand for Catalyst Systems: Can be employed as a ligand or precursor for catalysts used in various asymmetric synthesis and industrial catalytic processes.

Basic Information

Product Name	4-Carboxymethyl-Phenylboronic Acid
CAS No.	90111-58-3
Molecular Formula	C9H9BO4
Molecular Weight	191.98 g/mol
Synonyms	(4-(Carboxymethyl)phenyl)boronic acid; 4-Boronobenzeneacetic acid; [4-(Carboxymethyl)phenyl]boronic acid; 4-Carboxymethylbenzeneboronic acid; p-Carboxymethylphenylboronic acid; B-[4-(Carboxymethyl)phenyl]boronic acid; 4-Acetic acid phenylboronic acid
EINECS	Contact for details

Quality Control

Our 4-Carboxymethyl-Phenylboronic Acid is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and elemental analysis, to confirm identity, potency, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every shipment, ensuring full traceability and compliance with your internal quality standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive). For long-term storage, consider using desiccants or storing under an inert atmosphere 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%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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