Supplier Page from Aladdin Scientific Corporation for Cotton wool
(5-Trimethylsilanylethynyl-pyridin-2-yl)-carbamic acid tert-butyl ester from Aladdin Scientific Corporation
4-Nitrophenyl phosphate disodium salt hexahydrate from Aladdin Scientific Corporation
Fmoc-Ala(β-cyclobutyl)-OH from Aladdin Scientific Corporation
Fmoc-D-Glu(OtBu)-OH from Aladdin Scientific Corporation