4403-90-1
| Name | Acid Green 25 |
| CAS | 4403-90-1 |
| EINECS(EC#) | 224-546-6 |
| Molecular Formula | C28H20N2Na2O8S2 |
| MDL Number | MFCD00001193 |
| Molecular Weight | 622.58 |
| MOL File | 4403-90-1.mol |
Chemical Properties
| Appearance | dark green powder |
| Melting point | 235-238 °C(lit.) |
| storage temp. | room temp |
| Colour Index | 61570 |
| form | neat |
| color | Bluish green powder |
| Water Solubility | 36 g/L (20 ºC) |
| ε(extinction coefficient) | ≥10000 at 604-612nm ≥10200 at 640-646nm ≥20000 at 281-287nm ≥22700 at 251-257nm ≥6400 at 407-413nm |
| λmax | 608 nm 642 nm (2nd) |
| Merck | 14,252 |
| Henry's Law Constant | 3.1×1023 mol/(m3Pa) at 25℃, HSDB (2015) |
| Major Application | diagnostic assay manufacturing hematology histology |
| Cosmetics Ingredients Functions | COLORANT |
| InChIKey | FPAYXBWMYIMERV-UHFFFAOYSA-L |
| SMILES | [Na+].[Na+].Cc1ccc(Nc2ccc(Nc3ccc(C)cc3S([O-])(=O)=O)c4C(=O)c5ccccc5C(=O)c24)c(c1)S([O-])(=O)=O |
| LogP | -1.966 at 20℃ |
| EPA Substance Registry System | Benzenesulfonic acid, 2,2'-[(9,10-dihydro-9, 10-dioxo-1,4-anthracenediyl) diimino]bis[5-methyl-, disodium salt(4403-90-1) |
Safety Data
| Symbol(GHS) |  GHS09 |
| Signal word | Warning |
| Hazard statements | H411 |
| Precautionary statements | P273 |
| Hazard Codes | N |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 3077 9 / PGIII |
| WGK Germany | 2 |
| RTECS | DB5044000 |
| TSCA | TSCA listed |
| REACH Registrations | Active |
| HS Code | 32041200 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Aquatic Chronic 2 |
| Hazardous Substances Data | 4403-90-1(Hazardous Substances Data) |
| Toxicity |