Supplier Page from Aladdin Scientific Corporation for 1,2-Benzenedisulfonic Imide
6-Amino-5-iodonicotinic acid from Aladdin Scientific Corporation
6-Hydrazinoimidazo[1,2-b]pyridazine from Aladdin Scientific Corporation
Propargyl bromide from Aladdin Scientific Corporation
Pyrazine from Aladdin Scientific Corporation