Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 121-32-4, Whether you call it Ethyl Vanillin, 3-Ethoxy-4-hydroxybenzaldehyde , Ethylprotal , Ethylprotacatechuic Aldehyde or Bourbanal you can be assured the Ethyl Vanillin products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.