A3929812
Eosin B , 90% , 548-24-3
Synonym(s):
Dibromodinitrofluorescein sodium;Eosin B (bluish) (C.I.45400)
CAS NO.：548-24-3
Empirical Formula: C20H9Br2N2NaO9
Molecular Weight: 604.09
MDL number: MFCD00005041
EINECS: 208-943-1
| Pack Size | Price | Stock | Quantity |
| 5G | RMB64.00 | In Stock |
|
| 25G | RMB238.40 | In Stock |
|
| 100G | RMB679.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 275 °C (dec.)(lit.) |
| bulk density | 680kg/m3 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | spirit: soluble |
| Colour Index | 45400 |
| form | Solid |
| color | Very dark purple-red to dark brown |
| PH | 6.2 (10g/l, H2O, 25℃) |
| Water Solubility | Soluble in water (390 g/L at 20°C), and ethanol. |
| λmax | 514 nm, 395 nm |
| Merck | 14,3602 |
| BRN | 4121964 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Biological Applications | Antimalarial agent; protein assay; detecting enzyme activity; treating cancer,malaria,diabetes,a variety of conditions affecting skin,mouth,digestive tract,urinary tract,reproductive tract,respiratory tract,circulatory sys |
| Major Application | diagnostic assay manufacturing hematology histology |
| InChI | 1S/C20H8Br2N2O9.2Na/c21-14-16(25)11(23(29)30)5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(24(31)32)17(26)15(22)19(10)33-18(9)14;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2 |
| InChIKey | GYYTYUGGVBYJHE-UHFFFAOYSA-L |
| SMILES | [Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(C(=O)C(Br)=C3Oc4c(Br)c([O-])c(cc24)[N+]([O-])=O)[N+]([O-])=O |
| EPA Substance Registry System | Eosin B (548-24-3) |
Description and Uses
Eosin B sodium salt is a cell and tissue stain. Eosin B sodium salt is used as a counter stain for collagen, as a tissue stain for cell granules, nuclei, and microorganisms when coupled with Azure A (sc-203729), and as a stain for cell differentiation of the anterior pituitary.
