Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 7361-31-1, Whether you call it DL--Methyl-p-tyrosine Methyl Ester Hydrochloride or DL-2-Methyl-3-(4-hydroxyphenyl)alanine Methyl Ester Hydrochloride you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.