Import Diethyl Methylmalonate — Buy in Bulk from Supplier in China

Diethyl methylmalonate is a clear, colourless liquid with the chemical formula C8H14O4, used primarily as an intermediate in organic synthesis. The listing confirms a purity level exceeding 99%, consistent with industrial-grade requirements for pharmaceutical and agrochemical manufacturing. It is supplied in sealed containers to prevent moisture absorption and maintain stability during transport.

This compound is typically synthesised through esterification of methylmalonic acid with ethanol, resulting in a product with low water content and minimal free acid. Industry standards for such intermediates allow up to 0.5% water content and 0.1% acid impurity; this product meets or exceeds those benchmarks. It is not stabilised with additives and is shipped in its pure form to preserve reactivity in downstream processes.

Buyers include fine chemical manufacturers producing pharmaceutical intermediates, agrochemical precursors, and specialty plasticisers. The product is commonly used in Knoevenagel condensations and as a building block for heterocyclic compounds. Packaging is available in 20kg HDPE drums or 200kg steel drums, depending on volume. Trade terms include FOB Shanghai and CIF destinations, with MOQ starting at 100kg. Lead time is typically 7 to 14 days after order confirmation.

Changzhou Winsun Import & Export Corporation is a registered exporter based in Changzhou, Jiangsu Province, China. Its registered address is 9/F Boai Mansion, 72 Boai Street, and it operates as an import-export intermediary for chemical intermediates. The listing confirms it holds a harbor trust tier and is classified as an imported supplier, indicating verified export compliance. No claims are made regarding factory ownership, production capacity, or years in operation.

The company does not state whether it manufactures the compound or sources it from third-party producers. Its profile includes no certifications, employee count, or client list. Response rate and average response time are not available, suggesting limited direct engagement on the platform. Buyers should treat this as a sourcing agent unless independent verification confirms production capability.