Supplier Page from Aladdin Scientific Corporation for Sodium sulfite
1H-Pyrrolo[3,2-d]pyrimidine-2,4(3H,5H)-dione from Aladdin Scientific Corporation
2-(3-Chloropropoxy)tetrahydro-2H-pyran from Aladdin Scientific Corporation
3-Chloro-2-methoxyphenylboronic acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation
N-(3-Chlorophenyl)-2-cyanoacetamide from Aladdin Scientific Corporation