Supplier Page from Aladdin Scientific Corporation for DL-Alanyl-DL-leucine
(3-Aminopropyl)trimethoxysilane from Aladdin Scientific Corporation
Bromo-PEG4-azide from Aladdin Scientific Corporation
DBCO-C3-PEG4-amine from Aladdin Scientific Corporation
Sodium hydrogencarbonate from Aladdin Scientific Corporation