Supplier Page from Aladdin Scientific Corporation for (4-Chlorobutanoyl)urea
1,1',3,3,3',3'-4,4',5,5'-Di-benzo-2,2'-indotricarbocyanine perchlorate from Aladdin Scientific Corporation
3-Formyl-4-isopropoxyphenylboronic acid (contains varying amounts of Anhydride) from Aladdin Scientific Corporation
4-(4-Hydroxyphenoxy)benzoic Acid from Aladdin Scientific Corporation
Sodium benzene-1,3-disulfonate from Aladdin Scientific Corporation