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Eosin B - 90%, high purity , CAS No.548-24-3

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Eosin B - 90%, high purity , CAS No.548-24-3

4 Citations

COA

Grade & Purity:

≥90%

Cas Number: 548-24-3
Molecular Weight: 624.06
Beilstein Registry Number: 4121964
EC Number: 208-943-1
MDL number: MFCD00005041
PubChem CID: 26697441
PubChem SID: 488200811

In stock

Item Number

E100232

Grouped product items
SKU	Size	Availability	Price
E100232-5g	5g	9	$14.90
E100232-25g	25g	7	$39.90
E100232-100g	100g	2	$140.90

Basic Description

Synonyms	4′,5′-Dibromo-2′,7′-dinitrofluorescein disodium salt Acid Red 91 \| Eosin bluish \| Eosin Scarlet \| Saffrosine Imperial Red \| C.I. 45400 \| 4,5-Dibromo-2,7-dinitrofluorescein disodium salt
Specifications & Purity	≥90%
Biochemical and Physiological Mechanisms	Eosin B is a xanthene dye and is also referred to as eosin bluish or erythrosin B. It is used in the Harris stain for Negri bodies. Eosin B is also used in Mayer’s Hemalum as a counterstain for collagen. Eosin B-Azure A are used together for the staining
Shipped In	Normal
Product Description	Eosin B is a fluorescent red dye that is used in microscopy to visualise cytoplasm and proteins like collagen. Eosin B is an adsorption and fluorescent indicator in microscopy.

Names and Identifiers

Pubchem Sid	488200811
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/488200811
Smiles	[Na+].[Na+].[O-][N+](=O)c1cc2c(c3ccccc3C(=O)[O-])c3cc([N+](=O)[O-])c([O-])c(Br)c3oc2c(Br)c1=O
WGK Germany	3
PubChem CID	26697441
Molecular Weight	624.06
Beilstein	4121964

Certificates（CoA,COO,BSE/TSE and Analysis Chart)

C of A & Other Certificates(BSE/TSE, COO):

Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

9 results found

Lot Number	Certificate Type	Date	Item
G2109225	Certificate of Analysis	Apr 03, 2025	E100232
G2109226	Certificate of Analysis	Apr 03, 2025	E100232
A2303416	Certificate of Analysis	Jan 14, 2023	E100232
H2211170	Certificate of Analysis	Jul 29, 2022	E100232
H2211171	Certificate of Analysis	Jul 29, 2022	E100232
D2310289	Certificate of Analysis	May 30, 2022	E100232
F2229040	Certificate of Analysis	May 30, 2022	E100232
F2229044	Certificate of Analysis	May 30, 2022	E100232
F2229045	Certificate of Analysis	May 30, 2022	E100232

Chemical and Physical Properties

Solubility	Soluble in water (390 g/L at 20°C), and ethanol.
Sensitivity	Moisture sensitive.

Citations of This Product

How to Cite Aladdin Scientific Products?

1. Xia Qiu, Ling Wang, Yinggui Zhu. (2021) Cathodic electrochemiluminescence behavior of Eosin B and its quenching mechanism by Cr3+. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 882 (115031).
2. Xiu-Fang Yan, Zeng-Ping Chen, Yin-Yin Cui, Yuan-Liang Hu, Ru-Qin Yu. (2016) Quantitative generalized ratiometric fluorescence spectroscopy for turbid media based on probe encapsulated by biologically localized embedding. ANALYTICA CHIMICA ACTA, 921 (38).
3. Jingfeng Dong, Mei Wang, Pan Zhang, Songqiu Yang, Jianyong Liu, Xueqiang Li, Licheng Sun. (2011) Promoting Effect of Electrostatic Interaction between a Cobalt Catalyst and a Xanthene Dye on Visible-Light-Driven Electron Transfer and Hydrogen Production. Journal of Physical Chemistry C, 115 (30): (15089–15096).
4. Xiaohui Kang, Lanpeng Zhang, Wei Jia, Liang Yang, Changlong Jiang. (2024) Visual Detection of Methylglyoxal in Multiple Scenarios via NIR-Excitable Reversible Ratiometric Fluorescent Hydrogel Sensor. ANALYTICAL CHEMISTRY, 96 (52): (20568-20577).

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