A8477332
Eosin Y , 1%(w/v) inwater adsorption indicator , 17372-87-1
Synonym(s):
2′,4′,5′,7′-Tetrabromofluorescein disodium salt;Acid red 87;Disodium-2-(2,4,5,7-tetrabromo-3-oxido-6-oxoxanthen-9-yl)benzoate, trihydrate, A(K)MI-5, PRMT Inhibitor III;Eosin yellowish solution
CAS NO.：17372-87-1
Empirical Formula: C20H6Br4Na2O5
Molecular Weight: 691.854
MDL number: MFCD00005040
EINECS: 241-409-6
| Pack Size | Price | Stock | Quantity |
| 1L | RMB359.20 | In Stock |
|
| others | Enquire |
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | >300°C |
| Density | 1.02 g/mL at 20 °C |
| vapor pressure | 0Pa at 25℃ |
| Flash point: | 11 °C |
| storage temp. | Store at RT. |
| solubility | H2O: 0.1 g/mL, dark red |
| Colour Index | 45380 |
| pka | 2.9, 4.5(at 25℃) |
| form | Solid |
| color | Reddish |
| PH Range | 0(yellow)-3(green fluoresc.) |
| PH | 9.2 (10g/l, H2O, 20℃) |
| Water Solubility | freely soluble |
| λmax | 514nm |
| Merck | 14,3603 |
| BRN | 3586809 |
| Stability: | Stable. Incompatible with strong oxidizing agents. |
| Biological Applications | Treating age-related macular degeneration,burns,cancer,diabetes,obesity,dental bone defects,gastroesophageal reflux disease,prostate cancer,viral diseases; stents; wound-healing materials |
| Major Application | Photovoltaic devices, color filter, nanoscale host material, detection of latent fingerprints, inks, detergents, hair dyes, cosmetics, implantable drug delivery devices, stents, diagnosis of breast lesions, labeling nucleic acids, detecting proteins, stress biomarkers, phosphoprotein, breast cancer metastases, antimicrobial agent, treatment of burns, endodontic, diabetes, obesity, cancer, radiochemotherapy, DNA sequencing, gene expression profiling, wound healing promoters |
| LogP | -1.33 |
Description and Uses
Eosin is most often used as a counterstain to haematoxylin in H&E (haematoxylin and eosin) staining. H&E staining is one of the most commonly used techniques in histology.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302-H317-H319 |
| Precautionary statements | P261-P264-P280-P301+P312-P302+P352-P305+P351+P338 |
| Hazard Codes | F,T,Xn,Xi |
| Risk Statements | 11-23/24/25-39/23/24/25-52/53-41-22-36-10 |
| Safety Statements | 7-16-36/37-45-24/25-61-39-26 |
| RIDADR | UN 1230 3/PG 2 |
| WGK Germany | 1 |
| RTECS | LM5850000 |
| TSCA | Yes |
| HS Code | 32041200 |
| Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
