Hi everyone,

I’m currently experiencing difficulties obtaining Diazald (Product No. D28000-25G, CAS 80-11-5, purity 99%, MW 214.24). I’m looking for the standard solid form of Diazald, which is typically a light-yellow solid.I placed an order with Sigma-Aldrich over two months ago, and although the website indicated a 1–2 day delivery time, the shipment still hasn’t been dispatched. Customer service mentioned that temperature-controlled logistics are causing significant delays.

I’ve also checked other suppliers, but most are based in the United States and cannot ship to the Netherlands quickly due to restrictions and long international transport times.

I urgently need Diazald for a methylation step prior to GC–MS analysis, and the delay is seriously affecting my project timeline. If anyone could lend this substance, I would greatly appreciate it. Or if anyone happens to have access to a pot of Diazald or knows a way to obtain it more quickly within Europe, I would sincerely appreciate any help or advice