Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 2394-20-9, Whether you call it DL-3-Methoxy-4-hydroxymandelic Acid, alpha -4-Dihydroxy-3-methoxybenzeneacetic Acid , Vanilmandelic Acid or DL-4-Hydroxy-3-methoxymandelic Acid you can be assured the DL-3-Methoxy-4-hydroxymandelic Acid products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.