| Product name： | Procyanidin B3 |
| Synonym： | Proanthocyanidin B3 |
| Purity： | 98% + by HPLC |
| Appearance： | Red-brown powder |
| Chemical Family： | Polyphenols |
| Canonical SMILES： | C1[C@@H]([C@H](OC2=C1C(=CC(=C2[C@H]3[C@@H]([C@H](OC4=CC(=CC(=C34)O)O)C5=CC(=C(C=C5)O)O)O)O)O)C6=CC(=C(C=C6)O)O)O |
| Botanical Source： | Occurs in Salix caprea and Fragaria spp. Present in red wine. peanut skins |