Description

3,4-Dichlorobenzeneboronic acid (CAS No. 151169-75-4) is a high-purity boronic acid derivative with the molecular formula C₆H₅BCl₂O₂ and IUPAC name (3,4-dichlorophenyl)boronic acid. This compound is a versatile building block in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions, enabling the formation of carbon-carbon bonds for pharmaceutical and material science applications. It is supplied as a white to off-white crystalline powder with exceptional stability under standard laboratory conditions. Suitable for use in research and industrial settings, this reagent is rigorously tested for purity (typically ≥95% by HPLC or GC analysis) and is packaged under inert conditions to ensure long-term shelf life. Store in a cool, dry place away from moisture and incompatible substances.

Properties

• CAS Number: 151169-75-4
• Complexity: 134
• IUPAC Name: (3,4-dichlorophenyl)boronic acid
• InChI: InChI=1S/C6H5BCl2O2/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,10-11H
• InChI Key: JKIGHOARKAIPJI-UHFFFAOYSA-N
• Exact Mass: 189.9759650
• Molecular Formula: C6H5BCl2O2
• Molecular Weight: 190.82
• SMILES: B(C1=CC(=C(C=C1)Cl)Cl)(O)O
• Topological: 40.5
• Monoisotopic Mass: 189.9759650
• Synonyms: 3,4-Dichlorobenzeneboronic Acid, 629-198-2, 3,4-Dichlorophenylboronic acid, 151169-75-4, (3,4-dichlorophenyl)boronic Acid, 3,4-Dichlorophenylboronicacid, MFCD01074646, 3,4-Dichlorophenyl boronic acid, BORONIC ACID, B-(3,4-DICHLOROPHENYL)-, CHEMBL20776, 3,4-dichloro benzene boronic acid, Boronic acid, (3,4-dichlorophenyl)-, B-(3,4-Dichlorophenyl)boronic Acid; 3,4-Dichlorobenzeneboronic Acid; (3,4-Dichlorophenyl)boronic Acid, SCHEMBL130450, 3,4-dichloro-phenylboronic acid, 3,4-dichlorophenyl-boronic acid, 3,4 dichlorobenzene boronic acid, 3,4-dichlorobenzene boronic acid, DTXSID10370221, 3, 4-dichlorophenyl boronic acid, 3,4-dichloro-phenyl boronic acid, 3,4-dichloro-phenyl-boronic acid, (3,4-dichloro-phenyl)boronic acid, (3,4-dichlorophenyl) boronic acid, STR07093, 3,4-Dichlorophenylboronic acid (contains varying amounts of anhydride), BDBM50282567, AKOS004116173, AB08089, AC-5380, CS-W009090, NCGC00249490-01, HY-32897, SY019951, DB-010510, D3783, EN300-49160, Z336080010

Application

3,4-Dichlorobenzeneboronic acid is widely used as a key intermediate in the synthesis of biaryl compounds via palladium-catalyzed cross-coupling reactions. It finds applications in pharmaceutical research for the development of active pharmaceutical ingredients (APIs) and agrochemicals. Additionally, this boronic acid derivative is employed in materials science for the preparation of advanced organic electronic materials and ligands for catalysis.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (98%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (98%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.