IndicatorAnalytically pureBiological stainLarge package of inorganic...Indicator for faded inkReagent for plating aluminReagent for karstReagent for antifreeze
Products
Indigo Carmine
| Product name | Indigo Carmine |
| Alias | C.I. 75781; C.I. Acid Blue 74; C.I. Food Blue 1; C.I. Food Blue 1, disodium salt; C.I. Natural Blue 2; Indigotindisulfonate Sodium [USAN]; 5,5-Indigodisulfonic acid, disodium salt; Acid Blue 74; disodium 5,5-(2-(1,3-dihydro-3-oxo-2H-indazol-2-ylidene)-1,2-dihydro-3H-indol-3-one)disulphonate; disodium 5,5-indigodisulphonate; E 132; Indigo-5,5-disulphonic acid disodium salt; 1H-indole-5-sulfonic acid, 2-(1,3-dihydro-3-oxo-5-sulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, disodium salt, (2E)-; disodium (2E)-3,3'-dioxo-1,1',3,3'-tetrahydro-2,2'-biindole-5,5'-disulfonate |
| English name | Indigo Carmine |
| Alias | C.I. 75781; C.I. Acid Blue 74; C.I. Food Blue 1; C.I. Food Blue 1, disodium salt; C.I. Natural Blue 2; Indigotindisulfonate Sodium [USAN]; 5,5-Indigodisulfonic acid, disodium salt; Acid Blue 74; Indigo-5,5-disulphonic acid disodium salt; |
| CAS RN | 860-22-0 |
| EINECS No. | 212-728-8 |
| Molecular formula | C16H8N2Na2O8S2 |
| Molecular weight | 466.3529 |
| Molecular structure |  |
| Solubility | 1 g/100 mL (25℃) |
| Uses | In oxidizing agent, reducing agent, indicating agent and biological dye |