| Molecular Formula | C30H24O12 |
| Molar Mass | 576.5 |
| Boling Point | 946.0±65.0 °C |
| Solubility | Practically insoluble (0.024 g/L) (25 °C) |
| Appearance | Powder |
| Storage Condition | 2-8℃ |
| biological activity | Proanthocyanidin A4, a polyphenol found in various plants isolated from E. sinica roots. Proanthocyanidin A4 has anti-inflammatory effect. |