|
| EOSIN B Basic information |
Product Name: | EOSIN B | Synonyms: | C.I. Acid Red 91;Eosin B, high purity biological stain;Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 4',5'-dibromo-3',6'-dihydroxy-2',7'-dinitro-, disodium salt;2-(4,5-dibromo-3,6-dihydroxy-2,7-dinitroxanthen-9-yl)-benzoic acid, disodium salt;EOSIN B CERTIFIED;EOSIN B CERTIFIED (C.I. 45400);EOSIN SCARLET, FOR MICROSCOPY;EOSIN BLUISH, WATER-SOLUBLE, PURE, FOR M ICROSCOPY | CAS: | 548-24-3 | MF: | C20H9Br2N2NaO9 | MW: | 604.09 | EINECS: | 208-943-1 | Product Categories: | Organics;Xanthene | Mol File: | 548-24-3.mol | |
| EOSIN B Chemical Properties |
Melting point | 275 °C (dec.)(lit.) | 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 | EPA Substance Registry System | Eosin B (548-24-3) |
Hazard Codes | Xn | Risk Statements | 22 | Safety Statements | 22-24/25 | WGK Germany | 3 | TSCA | Yes | HS Code | 3204 12 00 |
| EOSIN B Usage And Synthesis |
Chemical Properties | odourless green to reddish-brown solid | Uses | Dyeing wool, cotton, and paper. In histology as a stain for epithelia, muscular fibers, nuclei, etc. | 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. | Preparation | will 4′,5′-Dibromofluorescein?(C.I. Acid Orange 11, C.I. 45370) nitrification, and translated into sodium salt or ammonium salt. | Definition | ChEBI: An organic sodium salt which is the disodium salt of eosin b diphenol. | storage | Room temperature | Properties and Applications | colourful red blue light.
Standard
|
Light Fastness
|
Soaping
|
Persperation Fastness
|
Oxygen bleaching
|
Fastness to seawater
|
Fading
|
Stain
|
Fading
|
Stain
|
Fading
|
Stain
|
ISO
|
3
|
3
|
|
3
|
3
|
|
3
|
|
| Purification Methods | Free it from inorganic halides by repeated crystallisation from butan-1-ol. [Beilstein 19/6 V 469.] |
| EOSIN B Preparation Products And Raw materials |
|