Supplier Page from Aladdin Scientific Corporation for 2,4,6,8-Tetrachloropyrimido[5,4-d]pyrimidine
1,2,3,4,5,6,7,8-Octahydro-naphthalene from Aladdin Scientific Corporation
2-Pyridylamidoxime from Aladdin Scientific Corporation
3-methyl-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid from Aladdin Scientific Corporation
PDE4 inhibitor 16 from Aladdin Scientific Corporation