Supplier Page from Aladdin Scientific Corporation for 2,3,5-Collidine
2-Bromoisobutyric anhydride from Aladdin Scientific Corporation
5-Bromobenzo[b]naphtho[1,2-d]thiophene from Aladdin Scientific Corporation
N-Isopropylmethylamine from Aladdin Scientific Corporation
Sodium benzene-1,3-disulfonate from Aladdin Scientific Corporation