Import Borane-Pyridine Complex 110-51-0 — Buy in wholesale FOB from Supplier in China

Borane-pyridine complex (CAS 110-51-0) is a coordination compound where borane (BH3) is stabilised by pyridine ligands, forming a crystalline solid that functions as a selective reducing agent in organic synthesis. The complex presents as a white to off-white crystalline material with a molecular formula of C5H8BN and a molecular weight of 92.93 g/mol. Its key advantage over other borane complexes lies in its moderate reactivity profile, allowing controlled reduction of aldehydes, ketones and imines without over-reduction of sensitive functional groups. The compound is stable at room temperature when stored under inert atmosphere, though it hydrolyses slowly in moist air to release hydrogen gas.

The product is typically supplied at purity levels of 95% or greater, with the balance comprising residual pyridine and trace boron-containing by-products from the manufacturing process. Standard quality benchmarks for this grade include a melting point range of 10-12 degrees Celsius for the neat liquid or low-melting solid form, though commercial samples often exhibit slight variation depending on crystallisation conditions. The borane content, expressed as active hydride equivalents, is a critical parameter that determines stoichiometric efficiency in reduction reactions. Typical packaging employs amber glass bottles with nitrogen padding, sealed under argon or nitrogen to prevent oxidative degradation during storage and transit.

Primary buyers include pharmaceutical contract research organisations, university chemistry departments and fine chemical manufacturers who require a bench-stable source of borane for multi-step syntheses. The complex finds particular use in the preparation of chiral amines via asymmetric reductive amination and in the synthesis of boron-containing pharmaceutical intermediates. Sourcing from Zhengzhou Kingsfine Chemical Co., Ltd. in Henan Province offers access to China's established base chemical manufacturing infrastructure, though buyers should verify the supplier's current production capacity and batch-to-batch consistency records before committing to volume orders. The compound is classified as hazardous under UN criteria due to its flammable and water-reactive properties, requiring specialised handling protocols and documentation for international shipment.

Zhengzhou Kingsfine Chemical Co., Ltd. is located on Chenguan Road in the Hi-Tech Industrial Development Zone of Zhengzhou, Henan Province, China. The supplier holds an 'imported' tier designation and a 'harbor' trust level, which indicates a baseline verification status rather than extensive third-party auditing. The response rate is recorded at 0.00% with zero average response hours, suggesting that direct communication channels may be underutilised or that the supplier primarily engages through alternative contact methods not reflected in platform metrics. Buyers should not assume active customer service availability without independent verification.

The company operates within China's well-established chemical manufacturing corridor in Henan Province, a region with significant output of fine and specialty chemicals. The listing for borane-pyridine complex does not disclose specific manufacturing certifications, ISO compliance, or quality management system accreditation. No information is provided about production scale, reactor capacity, R&D facilities, or in-house analytical capabilities. Buyers are advised to request a supplier questionnaire, recent COA (Certificate of Analysis) for the specific batch, and details of the synthesis route before advancing to sample or trial order stages.