Spectrum Chemical manufactures and distributes fine chemicals with quality you can count on including those with CAS number 10031-30-8, Whether you call it Calcium Phosphate, Monobasic, Calcium Dihydrogen Phosphate , Acid Calcium Phosphate or Calcium Biphosphate you can be assured the Calcium Phosphate, Monobasic products offered by Spectrum, meet or exceed the grade requirements or specifications for each individual product.