Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 67-03-8, Whether you call it Thiamine Hydrochloride, 3-(4-Amino-2-methylpyrimidin-5-ylmethyl)-5-(2-hydroxyethyl)-4-methylthiazolium Chloride Hydrochloride , Aneurine Hydrochloride or Vitamin B1 Hydrochloride you can be assured the Thiamine Hydrochloride products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.