Supplier Page from Aladdin Scientific Corporation for (+)-Biotin-PEG₂-azide
(S)-(-)-7-[N-(1,3-Dithian-2-yl)methylamino]-7'-[bis(3,5-di-t-butylphenyl)phosphino]-2,2',3,3'-tetrahydro-1,1'-spirobindane from Aladdin Scientific Corporation
5-Amino-2-methylbenzothiazole dihydrochloride from Aladdin Scientific Corporation
Bis(di-tert-butyl(4-dimethylaminophenyl)phosphine)dichloropalladium(II) from Aladdin Scientific Corporation
Sodium iodide from Aladdin Scientific Corporation