2870-32-8
| Name | Direct Yellow 12 |
| CAS | 2870-32-8 |
| EINECS(EC#) | 220-698-2 |
| Molecular Formula | C30H26N4Na2O8S2 |
| MDL Number | MFCD00007488 |
| Molecular Weight | 680.66 |
| MOL File | 2870-32-8.mol |
Chemical Properties
| Appearance | orange crystalline powder |
| Melting point | >300°C |
| storage temp. | Amber Vial, Refrigerator, Under inert atmosphere |
| solubility | DMSO (Slightly), Methanol (Slightly), Water (Slightly) |
| Colour Index | 24895 |
| form | Solid |
| color | Orange to Dark Orange |
| ε(extinction coefficient) | ≥29000 at 389-401nm in water at 0.02g/L |
| λmax | 389 nm |
| Stability: | Light Sensitive |
| Major Application | diagnostic assay manufacturing hematology histology |
| Cosmetics Ingredients Functions | HAIR DYEING |
| InChIKey | BFMGWSCDIBELQN-BHHUATOHSA-N |
| SMILES | C(C1C=CC(/N=N/C2C=CC(OCC)=CC=2)=CC=1S(O)(=O)=O)=CC1C=CC(/N=N/C2C=CC(OCC)=CC=2)=CC=1S(O)(=O)=O.[NaH] |
| EPA Substance Registry System | Benzenesulfonic acid, 2,2'-(1,2-ethenediyl) bis[5-[(4-ethoxyphenyl)azo]-, disodium salt(2870-32-8) |
Safety Data
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 2927.00.5000 |
| Storage Class | 11 - Combustible Solids |