Identification | ||
Name | Indigo | |
Synonyms | 2-(1,3-Dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro-3H-indol-3-one; 2,2'-Bis(2,3-dihydro-3-oxoindolylidene); Indigo blue; C.I. 73000; Vat Blue 1 | |
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Molecular Structure |
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Molecular Formula | C16H10N2O2 | |
Molecular Weight | 262.27 | |
CAS Registry Number | 482-89-3 | |
EINECS | 207-586-9 | |
Properties | ||
Melting point | 390-392 ºC (dec.) | |
Water solubility | <0.1 g/100 mL |