Indigo
ALDRICH/229296 - synthetic, Dye content 95 %
Synonym: Indigo blue; Indigotin
CAS Number: 482-89-3
Empirical Formula (Hill Notation): C16H10N2O2
Molecular Weight: 262.26
EC Number: 207-586-9
MDL Number: MFCD00005722
Linear Formula: C16H10N2O2
Product Type: Chemical
| ε (extinction coefficient) | ≥8000 at 599-605 nm in chloroform |
| λmax | 602 nm |
| application(s) | diagnostic assay manufacturing hematology histology |
| composition | Dye content, 95% |
| density | 1.35 g/cm3 at 20 °C |
| form | powder |
| InChI | 1S/C16H10N2O2/c19-15-9-5- |
| InChI key | COHYTHOBJLSHDF-BUHFOSPRSA |
| mp | >300 °C (lit.) |
| Quality Level | 200  |
| SMILES string | O=C1C(Nc2ccccc12)=C3/Nc4 |
| storage temp. | room temp |
| technique(s) | titration: suitable |
| Application: | Indigo has been used as a dye to measure food consumption in Drosophila. It has also been used to investigate the ability of fungal strains in the degradation and decolorization of indigo dye. |
| Biochem/physiol Actions: | Indigo is a rich blue color dye. It can be extracted from plants of genus Indigofera and can also be produced synthetically. Indigo is a vat textile dye, widely used on cellulosic fibers like cotton. Additionally, it is also used to inhibit corrosion of mild steel in aerated sulfuric acid. |
| Packaging: | 25, 100 g in glass bottle |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315 - H319 - H335 |
| Precautionary statements | P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | Xn |
| Risk Statements | 48/20/21/22 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | >300 °C (lit.) |
| Density | 1.35 g/cm3 at 20 °C |
| Storage Temp. | room temp |
| Colour Index Number | 73000; 73000 |
| UNSPSC | 12171500 |