Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 538-75-0, Whether you call it N,N�-Dicyclohexylcarbodiimide, 1 -3-Dicyclohexylcarbodiimide or DCC you can be assured the N,N�-Dicyclohexylcarbodiimide products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.