Import Benzenesulfonyl Chloride — Buy in wholesale FOB from Supplier in China

Wuhan Excellent Voyage Chemical Co., Ltd. supplies benzenesulfonyl chloride (CAS 2618-96-4, EC 220-051-4, HS 2925190090) as a white powder with minimum 90% assay and melting point 150-155°C. The material is also known as dibenzenesulfonimide, bis-benzene sulfonimide or diphenylsulfonimide, with molecular formula C12H11O4NS2 and molecular weight 297.35. The supplier positions this sulfonylimide compound for electroplating brightener applications as a saccharin alternative, with additional pharmaceutical intermediate uses. Storage requires cool, dry conditions with general chemical handling protocols, and delivery is as a standard chemical shipment.

The 90% assay specification indicates technical-grade material rather than purified reagent grade, which is typical for industrial plating intermediates where cost optimisation outweighs trace impurity concerns. The melting point range of 150-155°C suggests a mixture of isomers or hydrated forms, as pure dibenzenesulfonimide typically melts at higher temperature; buyers should confirm whether this is an eutectic mixture, partially hydrolysed material, or simply conservative specification. In nickel plating baths, this compound functions as a primary brightener with claimed advantages over saccharin in levelling effectiveness and lower consumption rates, though independent technical verification of these performance claims is advisable.

Primary users are electroplating chemical formulators, surface finishing houses and pharmaceutical manufacturers requiring sulfonylimide building blocks. The supplier's location in Wuhan, Hubei Province, places it within China's major chemical manufacturing corridor with established logistics for hazardous chemical export. Buyers should confirm whether the material is supplied as powder, granular or compacted form, as this affects dust exposure during handling and dissolution rates in plating bath make-up. Certificate of analysis, material safety data sheet in the buyer's language, and REACH or equivalent regulatory compliance documentation should be requested before import.

Wuhan Excellent Voyage Chemical Co., Ltd. operates from Room 4505, Building 5, Vanke Hankou Legend, Wuhan 430000, Hubei Province, China, placing it in a commercial office complex rather than an industrial zone. The company holds a 'harbor' trust tier with 0.00% response rate and zero average response hours, indicating no recorded platform enquiry history. No manufacturing facility description, production capacity, employee count, revenue, quality certifications or regulatory licences are stated in the listing. Buyers should independently verify whether the company is a manufacturer, trading company or distributor, and confirm GMP, ISO or chemical-specific certifications relevant to their intended application.

The listing provides detailed chemical identity data including multiple synonyms, CAS, EINECS, HS code and molecular parameters, suggesting technical familiarity with the product. However, the discrepancy between the trade name 'benzenesulfonyl chloride' and the chemical description as dibenzenesulfonimide requires clarification, as these are structurally distinct compounds with different CAS numbers and reactivities. Buyers should request clarification of whether the supplied material is benzenesulfonyl chloride (CAS 98-09-9, C6H5ClO2S) or dibenzenesulfonimide (CAS 2618-96-4), as this fundamentally affects application suitability and regulatory classification.