Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 14663-23-1, Whether you call it Dantrolene Sodium Salt or 1-[(5-(p-Nitrophenyl)furfurylidene)amino]hydantoin Sodium-Potassium Salt you can be assured the products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.