Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 25301-02-4, Whether you call it Tyloxapol or 4-(1 -1 -3 -3-Tetramethylbutyl)phenol Polymer with Formaldehyde and Oxirane you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.