Merck
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文件

318906

Sigma-Aldrich

伊红 Y 溶液

5 wt. % in H2O

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别名:
2′,4′,5′,7′-四溴荧光素 二钠盐, 曙红微黄 溶液, 酸性红 87
经验公式（希尔记法）:
C20H6Br4Na2O5
CAS号:
17372-87-1
分子量:
691.85
Beilstein:
1443944
MDL编号:
MFCD00005040
PubChem化学物质编号:
24858876
NACRES:
NA.47

形式

liquid

质量水平

100

浓度

5 wt. % in H2O

颜色

red to very dark red

密度

1.015 g/mL at 25 °C

λmax

518 nm

application(s)

diagnostic assay manufacturing
hematology
histology

储存温度

room temp

SMILES string

[Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c([O-])c(Br)cc24

InChI

1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2

InChI key

SEACYXSIPDVVMV-UHFFFAOYSA-L

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相关类别

一般描述

曙红Y也称曙红微黄，是一种广泛使用的氧杂蒽染料。它是一种复染剂，用于区分各种结缔组织纤维&基质和不同类型细胞的细胞质。曙红与苏木精同用可显示组织的一般组织学结构。

应用

曙红 Y 适用于苏木精和曙红 (H&E) 染色流程，可用于各种组织样品，如肺结节和肾切片。

象形图

Exclamation mark
GHS07

警示用语：

Warning

危险声明

H317

危险分类

Skin Sens. 1

储存分类代码

12 - Non Combustible Liquids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  5. Is Product 318906 suitable for use in Hematoxylin and Eosin (H&E) staining procedures?

    Product 318906 was not intended for use with H&E staining techniques. The dye content for the Eosin Y is 5% in water. For H&E staining, the concentration is typically 0.5 to 1.0 %. At 5 % dye content, the dye is much too concentrated for use with H&E staining. If used at such a high concentration, the cytoplasmic staining is likely to obscure the nuclear staining from the hematoxylin. A well stained H&E slide should show blue nuclear staining and typically at least 3 shades of Eosin staining. When used at 5% dye content, the cytoplasmic staining is likely to be a homogenous or monotone.The 5% Eosin solution has only one common application - determining sperm viability.  In a typical semen analysis, 5% Eosin Y is used in conjunction with 10% Nigrosin. This combination of dyes is used to judge the viability of the sperm. A standard H&E procedure is then used to judge the morphology of the sperm. Sperm counts are typically performed without the use of a dye solution.It is possible to consider a 5% Eosin solution as a 10X staining solution. The product, however, is not suitability tested for use in either a sperm viability procedure or a H&E staining procedure.The following products have been suitability tested for use in H&E staining procedures and are considered suitable for use in In Vitro Diagnostic procedures. They are the preferred products for H&E staining. Most are formulated with 0.5% Eosin Y. The exception is Eosin Y with Phloxine B. For this formulation both the Eosin Y and the Phloxine B are formulated at 0.1% dye content.Eosin Y solution, alcoholicHT110116, HT110132, HT110180, HT1101128Eosin Y solution, aqueousHT110216, HT110232, HT110280, HT1102128Eosin Y solution, alcoholic, with phloxineHT110316, HT110332, HT110380, HT1103128

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    Ask a Scientist here.

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The utility of visible-light-mediated polymerization in tissue engineering has been limited due to the necessary use of potentially cytotoxic coinitiator and comonomer. Here, we report a visible-light-mediated thiol-ene hydrogelation scheme using eosin-Y as the only photoinitiator. Under visible light exposure
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