And so, I have aided his Confederate stooges in contriving the corrosive stone mite and blue virus plagues, provided his cyborg supreme commander with samples of my mutagenic 3L41UH7 serum, and granted Count Dooku access to my Wayland facility for his dashta tissues and shadow army.—Zeta Magnus[src]

The 3L41UH7 Serums were mutagenic fluids that were created by Zeta Magnus, an Accelerated Transgenic Heuristic Abhorer. During the Clone Wars, Magnus provided General Grievous, the cyborg Supreme Commander of the Droid Army of the Separatist Alliance, with samples of that serum.