For researchers and development chemists, a thorough understanding of a chemical intermediate's properties is fundamental to its successful application. [4-(4-Propylphenyl)phenyl]boronic acid, a valuable compound identified by CAS number 153035-56-4, is increasingly utilized in specialized areas such as pharmaceutical synthesis and the development of Organic Light-Emitting Diodes (OLEDs). Knowing its physical characteristics and chemical behavior allows R&D teams to optimize reaction conditions and predict outcomes effectively. This article highlights the key properties of this important boronic acid derivative.

Primarily, [4-(4-propylphenyl)phenyl]boronic acid is supplied as a white powder, a visual indicator often associated with high purity in fine chemicals. Its molecular formula is C15H17BO2, with a molecular weight of approximately 240.105 g/mol. From a physical properties standpoint, its density is noted as 1.1±0.1 g/cm³. While specific melting point data is not universally published, its boiling point is recorded at 413.1±48.0 °C at standard atmospheric pressure (760 mmHg), indicating good thermal stability for reactions conducted at elevated temperatures. The refractive index is measured at 1.581, a property that might be relevant in certain optical applications or material characterizations.

Chemically, the critical attribute of [4-(4-propylphenyl)phenyl]boronic acid is its boronic acid functional group (-B(OH)2). This moiety is highly reactive in various cross-coupling reactions, most notably the Suzuki-Miyaura coupling. This reaction forms new carbon-carbon bonds, a fundamental step in building complex organic molecules required for pharmaceuticals and advanced materials like those used in OLEDs. The biphenyl structure, substituted with a propyl group, provides a rigid and electronically tunable framework that can be readily manipulated synthetically.

For practical laboratory use and commercial supply, key specifications include purity and water content. A typical assay for this compound is ≥98.0%, ensuring that the material is suitable for demanding synthetic pathways where impurities can lead to undesired side reactions or reduced yields. The water content is typically kept low, often specified as ≤0.50%, to maintain the compound's stability and reactivity. When looking to buy this intermediate, it is advisable to consult the product's Certificate of Analysis (CoA) from your chosen supplier. This document will provide verified details of these critical properties. Understanding these specifications helps R&D chemists make informed decisions when incorporating [4-(4-propylphenyl)phenyl]boronic acid into their synthesis plans, ensuring predictable and reproducible results.

Researchers seeking to procure this compound should identify suppliers who can provide detailed technical data and ensure consistent batch-to-batch quality. Whether for pharmaceutical intermediate synthesis or OLED material development, the detailed properties of [4-(4-propylphenyl)phenyl]boronic acid are key to its effective utilization.