Supplier Page from Aladdin Scientific Corporation for (1-Ethyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)boronic acid（contains varying amounts of Anhydride）
1,1',3,3,3',3'-4,4',5,5'-Di-benzo-2,2'-indotricarbocyanine perchlorate from Aladdin Scientific Corporation
1,3,5-Trimethyl-4-(tributylstannyl)-1H-pyrazole from Aladdin Scientific Corporation
N,N-Diethylmethylamine from Aladdin Scientific Corporation
PDE4 inhibitor 16 from Aladdin Scientific Corporation