Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 137-66-6, Whether you call it Ascorbyl Palmitate, L-Ascorbic Acid - 6-Hexadecanoate , L-Ascorbic Acid Palmitate or Palmitoyl L-Ascorbic Acid you can be assured the Ascorbyl Palmitate products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.