Supplier Page from Aladdin Scientific Corporation for Phenolphthalin [for redox indicator]
2-(piperidin-3-yl)acetic acid from Aladdin Scientific Corporation
7-nitro-1H-indole-3-carbaldehyde from Aladdin Scientific Corporation
PDE4 inhibitor 16 from Aladdin Scientific Corporation
Tantalum from Aladdin Scientific Corporation