Import 9-Phenanthracenylboronic Acid — Buy in Bulk from Supplier in China

9-Phenanthracenylboronic acid (CAS 68572-87-2) is an organoboron compound used primarily as a Suzuki-Miyaura coupling reagent in pharmaceutical and agrochemical synthesis. Rsc supplies this material from Kunshan, Jiangsu province, China. The compound features a phenanthrene core functionalised at the 9-position with a boronic acid group, enabling palladium-catalysed cross-coupling with aryl halides to form carbon-carbon bonds. Its molecular formula is C14H11BO2, with a molecular weight of 236.05 g/mol typical for this structure. Purity levels are critical for reproducible reaction yields in multi-step synthetic routes.

The boronic acid moiety confers water stability relative to more reactive organoboron intermediates, though storage under inert atmosphere is standard practice to prevent protodeboronation. Typical commercial grades range from 95% to 98% purity, with higher specifications (greater than 99%) available on request for scale-up campaigns. The solid-state form is usually an off-white to pale yellow crystalline powder. Solubility profile spans polar organic solvents including THF, dioxane, and methanol, with limited water solubility at neutral pH. Batch-to-batch consistency in boron content and residual palladium levels matters significantly for regulated pharmaceutical applications.

Primary buyers include contract research organisations (CROs), custom synthesis houses, and API manufacturers developing kinase inhibitors, fluorescent probes, and organic semiconductors. Academic research laboratories purchase smaller quantities for methodology development. Rsc lists this compound with flexible order quantities; bulk supply is available for commercial campaigns. Buyers should confirm the specific purity grade, Certificate of Analysis (CoA) availability, and whether the material is supplied as free-flowing powder or requires micronisation for homogenous dosing. Incoterms and lead times should be discussed directly with Rsc, as these are not stated in the listing.

Rsc operates from Kunshan Economic Development Zone in Jiangsu province, China, with a registered address at Weishanhu Road 17. The supplier is classified under the harbour trust tier and imported supplier tier within the marketplace system. The response rate is recorded at 0.00%, with average response hours at zero, indicating that direct communication with this supplier may be limited or that response data has not yet accumulated. Buyers should test responsiveness through initial enquiry before relying on this supplier for time-critical orders.

The listing provides no information about Rsc's manufacturing capabilities, quality management system certifications, warehouse facilities, or whether the company functions as a manufacturer, distributor, or trading agent. No employee count, year of establishment, revenue figures, or client references are stated. The company profile does not mention ISO certification, GMP compliance, or other quality accreditations relevant to pharmaceutical raw material supply. Buyers must verify Rsc's regulatory documentation, audit history, and supply chain transparency directly.