| Product name： | Alkannin |
| Synonym： | (-)-Shikonin; Arnebin IV; Anchusaic acid; Anchusin; Alkanna red; Alkhanin; Shikalkin; Extra Cas, 54952-43-1 |
| Purity： | 98% + by HPLC |
| Appearance： | Dark purple powder |
| Chemical Family： | Quinones |
| Canonical SMILES： | CC(=CCC(C1=CC(=O)C2=C(C=CC(=C2C1=O)O)O)O)C |
| Botanical Source： | alkanet Alkanna tinctoria and Onosma echoides. Also from Lithospermum arvense, and others |