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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).

| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 10 g | $31 | In Stock | |
| 1 mL x 10 mM (in DMSO) | $48 | In Stock |
| 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, 2-hydroxy-1,4-naphthoquinone |
| Molecular Weight | 174.15 |
| Formula | C10H6O3 |
| Cas No. | 83-72-7 |
| Smiles | O=C1C=2C(C(=O)C=C1O)=CC=CC2 |
| Relative Density. | 1.46 g/cm3 (25°C) |
| Color | Yellow |
| Appearance | Solid |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||
| Solubility Information | DMSO: 3.67 mg/mL (21.07 mM), Sonication is recommended. | |||||||||||||||||||||||||
Solution Preparation Table | ||||||||||||||||||||||||||
DMSO
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