Description

4-Butylphenylboronic Acid (CAS No. 145240-28-4) is a high-purity boronic acid derivative with the molecular formula C₁₀H₁₅BO₂. This organoboron compound is widely utilized in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions, due to its excellent reactivity and stability. The compound features a butylphenyl group attached to a boronic acid moiety, making it a valuable building block for pharmaceuticals, agrochemicals, and advanced material research. Our product is rigorously tested to ensure ≥95% purity (HPLC) and is supplied as a white to off-white crystalline powder. Suitable for use in anhydrous reactions, it is packaged under inert conditions to maintain integrity. Available in quantities ranging from grams to kilograms, this reagent is ideal for research and industrial-scale applications.

Properties

• CAS Number: 145240-28-4
• Complexity: 131
• IUPAC Name: (4-butylphenyl)boronic acid
• InChI: InChI=1S/C10H15BO2/c1-2-3-4-9-5-7-10(8-6-9)11(12)13/h5-8,12-13H,2-4H2,1H3
• InChI Key: UGZUUTHZEATQAM-UHFFFAOYSA-N
• Exact Mass: 178.1165099
• Molecular Formula: C10H15BO2
• Molecular Weight: 178.04
• SMILES: B(C1=CC=C(C=C1)CCCC)(O)O
• Topological: 40.5
• Monoisotopic Mass: 178.1165099
• Synonyms: 4-Butylphenylboronic acid, 145240-28-4, (4-butylphenyl)boronic Acid, DTXSID90399319, DTXCID40350177, 678-180-0, 4-n-Butylphenylboronic acid, 4-Butylbenzeneboronic Acid, Boronic acid, B-(4-butylphenyl)-, 4-N-BUTYLBENZENEBORONIC ACID, MFCD02093926, CHEMBL555064, 4-Butylphenylboronicacid, Boronic acid, (4-butylphenyl)-, 4-butyl-phenylboronic acid, 4-butylphenyl boronic acid, 4-butyl phenyl boronic acid, 4-(Butylphenyl)boronic acid, 4-n-butyl-phenylboronic acid, 4-n-butylphenyl-boronic acid, SCHEMBL152142, B-(4-Butylphenyl)boronic acid, 3X72JB299N, 4-Butylphenylboronic acid (contains varying amounts of Anhydride), BCP22754, BDBM50294582, AKOS003585310, AS-2489, BCP9000158, CS-W002881, NCGC00249513-01, AC-24818, PD182112, SY014141, DB-028781, B2589, EN300-4196071, Z336080182, 4-Butylbenzeneboronic Acid (contains varying amounts of Anhydride)

Application

4-Butylphenylboronic acid is primarily employed as a key intermediate in Suzuki-Miyaura cross-coupling reactions to form biaryl compounds, essential in pharmaceutical and material science research. It also serves as a precursor in the synthesis of liquid crystals and organic electronic materials. Researchers value its stability and reactivity in palladium-catalyzed transformations for constructing complex molecular architectures.

Safety and Hazards

GHS Hazard Statements

• H302 (33.3%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (11.1%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (88.9%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (88.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H332 (11.1%): Harmful if inhaled [Warning Acute toxicity, inhalation]
• H335 (77.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (33.3%)
• Acute Tox. 4 (11.1%)
• Skin Irrit. 2 (88.9%)
• Eye Irrit. 2 (88.9%)
• Acute Tox. 4 (11.1%)
• STOT SE 3 (77.8%)

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