45260
伊红 B
suitable for microscopy
别名:
4′,5′-二溴-2′,7′-二硝基荧光素 二钠盐, Saffrosine, 伊红猩红, 伊红蓝, 酸性红91
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线性分子式:
C20H6N2O9Br2Na2
化学文摘社编号:
分子量:
624.06
EC Number:
208-943-1
UNSPSC Code:
12171500
NACRES:
NA.47
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
4121964
SMILES string
[Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(C(=O)C(Br)=C3Oc4c(Br)c([O-])c(cc24)[N+]([O-])=O)[N+]([O-])=O
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
InChI key
GYYTYUGGVBYJHE-UHFFFAOYSA-L
technique(s)
titration: suitable
λmax
509-524 nm
suitability
suitable for microscopy
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General description
Eosin B is a fluorescent red dye that is used in microscopy to visualise cytoplasm and proteins like collagen.
Application
Eosin B is an adsorption and fluorescent indicator in microscopy.
存储类别
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
新产品
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Y M Cheng et al.
Neuroscience, 151(4), 1084-1098 (2008-01-19)
We examined the potential contribution of a voltage-gated proton conductance (gH+) to acid extrusion from cultured postnatal rat hippocampal neurons. In neurons loaded with Ca2+- and/or pH-sensitive fluorophores, transient exposures to 25-139.5 mM external K+ (K+o) or 20 microM veratridine
Syeda Sara Hassan et al.
Journal of hazardous materials, 190(1-3), 1030-1036 (2011-05-13)
We synthesized mefenamic acid (MA) derived gold nanoparticles (MA-AuNps) in aqueous solution (MA-Au sol). Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) of the sol at 1, 5, 15 and 60 min showed changes in size and shape of
A A Waheed et al.
Journal of biochemical and biophysical methods, 42(3), 125-132 (2000-03-29)
Eosin B is used to estimate proteins above 1 microg/ml concentration [Waheed AA, Gupta, PD. Anal. Biochem. 1996:233:249-256; Waheed AA, Gupta PD. J. Biochem. Biophys. Meth. 1996;33:187-196]. In the present report we describe a method for estimating submicrogram quantities of
Kristen M Massimine et al.
Antimicrobial agents and chemotherapy, 50(9), 3132-3141 (2006-08-31)
4',5'-Dibromo-2',7'-dinitrofluorescein, a red dye commonly referred to as eosin B, inhibits Toxoplasma gondii in both enzymatic and cell culture studies with a 50% inhibitory concentration (IC(50)) of 180 microM. As a non-active-site inhibitor of the bifunctional T. gondii dihydrofolate reductase-thymidylate
A A Waheed et al.
Journal of biochemical and biophysical methods, 33(3), 187-196 (1996-12-30)
We describe a detailed procedure for estimating a wide range of proteins by the eosin B dye method. At acidic pH, eosin B binds to proteins and absorption of the protein-dye complex at 536-544 nm is proportional to the concentration
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