| Description | Lawsone (Hennotannic acid) (2-hydroxy-1,4-naphthoquinone), also known as hennotannic acid, is a red-orange dye present in the leaves of the henna plant (Lawsonia inermis) as well as in the flower of water hyacinth (Eichhornia crassipes). |
| Synonyms | Hennotannic acid, 指甲花醌, 2-hydroxy-1,4-naphthoquinone |
| molecular weight | 174.15 |
| Molecular formula | C10H6O3 |
| CAS | 83-72-7 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 3.67 mg/mL (21.05 mM) |
| References | 1. Munt DJ, et al. AAPS PharmSciTech. 2015 Dec;16(6):1425-33. |