Procyanidin B1, isolated from commonly eaten fruits, binds to the TLR4/MD-2 complex and has anti-inflammatory activity.

Procyanidin B2 (Proanthocyanidin B2) has vascular protective, anti-diabetic nephropathy, anti-cancer, anti-inflammatory, and antioxidant activities. Procyanidin B2 inhibited NLRP3 inflammasome activation via suppression of AP-1 pathway.

Procyanidin C1 is a natural polyphenol that causes DNA damage, cell cycle arrest, and apoptosis induction. It reduces Bcl-2 protein levels and enhances the expression of BAX, caspase 3, and 9 in cancer cells.

Proanthocyanidins is a natural product, used as antioxidant and anti-cancers agent.

Procyanidin B3(B3) is a procyanidin dimer that is widely studied due to its high abundance in the human diet and antioxidant activity.

Crocin (Gardenia Yellow) is a water-soluble carotenoid pigment of saffron (Crocus sativus L. ) that has been used as a spice for flavoring and coloring food preparations, and in Chinese traditional medicine as an anodyne or tranquilizer. Crocin suppresses tumor necrosis factor (TNF)alpha-induced apoptosis of pheochromocytoma (PC12) cells by modulating mRNA expressions of Bcl-2 family proteins, which trigger downstream signals culminating in caspase-3 activation followed by cell death. Crocin prevented the activation of nSMase by enhancing the transcription of gamma-glutamylcysteinyl synthase, which contributes to a stable glutathione supply that blocks the activity of nSMase.

Procyanidin A1 (Proanthocyanidin A1) has antiallergic effects, it inhibits degranulation downstream of protein kinase C activation or Ca2+; influx from an internal store in RBL-2H3 cells.

Procyanidin A2 is a potential precursor of 5-(3',4'-dihydroxyphenyl)-γ-valerolactone, exhibits antioxidant, anti-inflammary, anti-hyperglycemia, and anti-type 2 diabetes activities. Procyanidin A2 demonstrates liver cell regenerative activity in scratch w

Proanthocyanidin A4 is a polyphenol isolated from the root of E. sinica, with anti-inflammatory effects.

Vinaginsenoside R3 is a natural product of Panax, Araliaceae. The catalog number is T4416 and the CAS number is 156012-92-9. Vinaginsenoside R3 can be used as a reference standard.