Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 674-26-0, Whether you call it DL-Mevalonic Acid Lactone, &#223, -Hydroxy-&#223 or -methyl--valerolactone you can be assured the DL-Mevalonic Acid Lactone products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.