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CAS: 17372-87-1
Molecular Formula:C20H6Br4Na2O5
Molecular Weight:691.85418
EINECS:241-409-6
Synonyms:EOSIN YELLOWISH SOLUTION 20 G/L, S34 2.5 L; EOSIN YELLOWISH SOLUTION, FOR MICROSCOPY; EOSIN YELLOWISH, PURUM, WATER-SOLUBLE, FOR MICROSCOPY; EOSIN-HEMATOXYLIN SOLUTION ACC. TO EHRLI CH, F. MICROSCOPY
What is EOSIN CAS 17372-87-1？
Water soluble eosin Y is a chemically synthesized acidic dye that dissociates into negatively charged anions in water and binds with positively charged cations of protein amino groups to stain the cytoplasm. The cytoplasm, red blood cells, muscles, connective tissue, eosin granules, etc. are stained to varying degrees of red or pink, forming a sharp contrast with the blue nucleus.
Specification
| Item | Specification |
| Melting point | >300°C |
| Vapor pressure | 0Pa at 25℃ |
| Flash point | 11 °C |
| Density | 1.02 g/mL at 20 °C |
| Storage conditions | Store at RT. |
| pKa | 2.9, 4.5(at 25℃) |
Application
Eosin is a good dye for cytoplasm. Usually used in conjunction with other dyes such as hematoxylin or methylene blue. Used as a biological staining agent. EOSIN is also used as an adsorption indicator for precipitation titration determination of Br -, I -, SCN -, MoO, Ag+, etc. Used as a chromogenic agent for the fluorescence photometric determination of Ag+, Pb2+, Mn2+, Zn2+, etc.
Packaging
Usually packed in 25kg/drum,and also can be do customized package.
Synonyms
EOSIN YELLOWISH SOLUTION 20 G/L, S34 2.5 L; EOSIN YELLOWISH SOLUTION, FOR MICROSCOPY; EOSIN YELLOWISH, PURUM, WATER-SOLUBLE, FOR MICROSCOPY; EOSIN-HEMATOXYLIN SOLUTION ACC. TO EHRLI CH, F. MICROSCOPY; EOSIN Y C.I. NO. 45380 , TECHNICAL DYE
