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1.17081

Sigma-Aldrich

Eosin Y solution 1%, alcoholic

for microscopy

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About This Item

UNSPSC Code:
41116124
NACRES:
NA.41

Quality Level

400

form

liquid

IVD

for in vitro diagnostic use

transition temp

flash point 19 °C

density

0.892 g/cm3 at 20 °C

application(s)

clinical testing
diagnostic assay manufacturing
hematology
histology

storage temp.

15-25°C

Related Categories

General description

Eosin Y solution 1%, alcoholic - for microscopy is used for human-medical cell diagnosis and serves the histological and clinico-cytological investigation of sample material of human origin in histological and clinico-cytological specimen materials, for example histological sections of e. g. the kidney, muscle tissue, heart, or lung. The hematoxylin and eosin (H&E) staining method is the method most frequently used for the staining of histology material. The staining mechanism behind the H&E staining is a physico-chemical process. In the first step, the positively charged nuclear dye (hematoxylin) binds to the negatively charged phosphate groups of the nucleic acid of the cell nucleus. The nuclei will be dyed dark blue to dark violet. The second step is the counterstaining with negatively charged anionic Eosin Y, a xanthene dye. Eosin binds to the positively charged plasma proteins. Cytoplasma and intercellular substances are stained pink to red, while erythrocytes will appear with yellow to orange color.
One 500ml bottle of the stain provides 1250 stainings. For more details, please see instructions for use (IFU). This product is registered as IVD and CE marked.

Analysis Note

Suitability for microscopy (Tissue section): passes test
Nuclei: dark blue to dark violet
Cytoplasm: pink to red
intercellular substances: pink to red
Erythrocytes: yellow to orange

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225 - H317 - H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

66.2 °F

Flash Point(C)

19 °C

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Flammable liquids
Alcohols
Hazardous rank II

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Mare Mechelinck et al.
PloS one, 14(12), e0226430-e0226430 (2019-12-14)
A simple but reliable and safe anaesthetic procedure is required for surgical interventions in small rodents. Combined ketamine and xylazine injections are often used in rats for less invasive surgery, possibly with spontaneous breathing and without airway management. However, there

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