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安全信息

1.15934

Sigma-Aldrich

Eosin B (bluish) (C.I.45400)

for microscopy Certistain®

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别名:
Eosin B (bluish) (C.I.45400), Dibromodinitrofluorescein sodium
经验公式(希尔记法):
C20H6Br2N2Na2O9
CAS号:
分子量:
624.06
MDL编号:
EC索引号:
208-943-1

质量水平

形式

solid

组成

Dye, ≥85% spectrophotometric assay

pH值(酸碱度)

6.2 (25 °C, 10 g/L in H2O)

溶解性

300 g/L

堆积密度

680 kg/m3

εmax

800-1000 at 517-525 nm in water at 0.005 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

储存温度

2-30°C

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

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一般描述

Eosin B (C.I. 45400) for microscopy Certistain®, is a dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Eosin B staining solutions. This staining solution will mostly be used for routine staining in the hematoxylin-eosin staining process (H&E). The H&E staining process is the most frequently used staining method for histological material. Due to the hematoxylin solution, the nuclei will appear dark blue to dark violet in color and the Eosin Y solution will stain the cytoplasma and intercellular substances pink to red. As the dye belongs to the portfolio of Certistain® dyes, it is chemically analyzed according to strict specifications before release (CE marked and IVD product) and a high staining quality, with reliable staining results is guaranteed. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

分析说明

Dye content (gravimetrically): ≥ 85 %
Identity
- sodium:
passes test
- UV/VIS-Spectrum: passes test
Absorption maximum λ max (water): 517 - 525 nm
Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; water): 800 - 1000
TLC-Test: passes test
Loss on drying (110 °C): ≤ 8 %
Suitability for microscopy: passes test

法律信息

CERTISTAIN is a registered trademark of Merck KGaA, Darmstadt, Germany

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°C)

Not applicable

法规信息

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