Import 4-Carboxybenzaldehyde — Buy in Bulk from Supplier in China

4-carboxybenzaldehyde (C8H6O3, CAS 619-66-9) is an aromatic aldehyde carboxylic acid intermediate supplied by Rongcheng K&S Chemical Co., Ltd. from their facility in Shandong Province, China. The listing states a minimum purity of 99.0%, a specification buyers should verify with batch-specific certificates of analysis before confirming orders. This compound presents as a white to off-white crystalline powder at room temperature, with a melting point standard for this grade of 190-195 degrees Celsius and a molecular weight of 150.13 g/mol.

The aldehyde and carboxylic acid functional groups on a single benzene ring make this compound a versatile building block in organic synthesis. Typical industrial grades are produced via catalytic oxidation or partial reduction routes, with purity levels ranging from 98.0% to 99.5% depending on the intended downstream application. The 99.0% minimum quoted here sits at the higher end of standard commercial offerings, suitable for pharmaceutical intermediate use where impurity profiles directly affect API quality. Standard packaging for this chemical class is 25kg fibre drums with polyethylene liners, though buyers should confirm Rongcheng K&S Chemical's exact drum specification and whether they offer alternative packaging for smaller trial quantities.

Primary demand comes from pharmaceutical manufacturers synthesising anti-inflammatory and cardiovascular APIs, agrochemical formulators developing novel pesticide intermediates, and specialty chemical producers creating dyes, pigments, and fragrance compounds. The compound's bifunctional reactivity allows selective transformation at either the aldehyde or carboxylic acid moiety, a property synthetic chemists exploit in multi-step routes. Buyers should confirm with Rongcheng K&S Chemical Co., Ltd. their current production capacity, typical batch sizes, whether they provide detailed impurity specifications including residual solvent data, and what analytical methods they use for quality verification.

Rongcheng K&S Chemical Co., Ltd. operates from the Shidaowan Development Zone in Rongcheng, Shandong Province, China, with their registered address at postal code 264200. The company's profile indicates an imported supplier tier classification and a harbor trust tier rating within the marketplace system. The response rate is recorded at 0.00% with zero average response hours, which signals that prospective buyers should anticipate communication delays and plan their procurement timelines accordingly. No verified export licence numbers, ISO certifications, or third-party audit statuses are present in the available profile data.

The listing presents Rongcheng K&S Chemical Co., Ltd. as a source of 4-carboxybenzaldehyde with a stated 99.0% minimum purity, positioned for pharmaceutical, agrochemical, and specialty chemical applications. The profile does not disclose founding year, number of employees, annual revenue, production capacity figures, or named client references. Buyers should independently verify the company's manufacturing capabilities, quality management system implementation, and whether they operate as a manufacturer or trading intermediary. The Shandong location places them within one of China's denser chemical industry clusters, which offers logistical advantages but also demands careful due diligence on environmental compliance and safety record.