| 482-89-3; 2,2'-bi(2,3-dihydroxy-3-oxoindolylidene); C.I. 73000; D&C blue 6; 2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one; indigo; (2E)-2-(3-oxo-1H-indol-2-ylidene)-1H-indol-3-one; 2,3,2',3'-tetrahydro-3,3'-dioxo-2,2'-biindolylidene; vat blue 1 | |
| Links: | 🌍 Wikipedia, 🕷 ChemSpider, 📖 PubMed, 📖Houben-Weyl, 2. Band (Indigo); p. 84, 90, 130, 143, 219, 228, 603, 612, 695, 733, 1004, 1019, 1040, |
| CAS RN: | [12626-73-2] |
| Formula: | C16H10N2O2; 262.27 g/mol |
| InChiKey: | COHYTHOBJLSHDF-BUHFOSPRSA-N |
| SMILES: | O=C1C(Nc2ccccc12)=C3Nc4ccccc4C3=O |
| Use: | vat dye |
| Colour: | ⬤ |
| Melting point: | 300 °C |
| Log10 partition octanol / water: | 3.72 |
| 1g dissolves in: 714.29g formic acid | |