CAS Registry Number

CAS 58-27-5 — Menadione

Menadione is a synthetic vitamin K analog used primarily as a nutritional supplement and in the synthesis of vitamin K3. It functions as a coagulation factor precursor and is employed in animal feed and pharmaceutical formulations. Available in powder form with a purity of ≥98%, it has a CAS number of 58-27-5, molecular formula C11H8O2, and molecular weight of 172.18 g/mol. Stored at ambient temperature, it is classified as a hazardous substance with a signal word of Danger. Molekula supplies Menadione from research to bulk quantities with full documentation and ISO 9001:2015 traceability.