Supplier Page from Aladdin Scientific Corporation for Potassium phosphate buffer
3-(4-Pyridyl)-L-alanine Dihydrochloride from Aladdin Scientific Corporation
Cefotetan from Aladdin Scientific Corporation
N-(3,3-Dimethylbutyl)-L-α-aspartyl-L-phenylalanine from Aladdin Scientific Corporation
Polymyxin B sulfate from Aladdin Scientific Corporation