Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

1.05387

Sigma-Aldrich

Leishman′s eosin methylene blue solution modified

for microscopy

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

UNSPSC Code:
41116121
NACRES:
NA.05

vapor pressure

128 hPa ( 20 °C)

Quality Level

400

form

liquid

autoignition temp.

455 °C (methanol)

expl. lim.

5.5-44 % (v/v) methanol()

IVD

for in vitro diagnostic use

bp

65 °C/1013 hPa

transition temp

flash point 12 °C

density

0.79 g/cm3 at 20 °C

storage temp.

20-25°C

General description

The staining method according to Leishman is one of the standard techniques in hematological diagnostic procedures. Like Wright′s eosin methylene blue solution and May-Grünwald′s eosin methylene blue solution,this ready-to-use solution is used for staining of blood and bone marrow smears and clinical cytological specimens. The typical resulting color of cell nuclei is red to purple, which depends on the buffer tablets (Buffer tablets pH 7.2 or Buffer tablets pH 6.8). The staining of the nuclei is due of the molecular interaction of the Eosin Y dye and a complex of Azur B with DNA. Both dyes assemble to an Eosin Y - Azur B-DNA complex and the intensity of the resulting stain depends on the content of Azur B and the ratio of Azur B : Eosin Y. Furthermore, the resulting stain can vary depending on the influence of fixation, staining times, pH-value of the solutions or buffer substances.
A 500 mL bottle of Leishman′s eosin methylene blue solution are sufficient for staining up to 1600 slides in Hellendahl cells. As an IVD product and CE registered, it can be used hassle-free in diagnostics and laboratory accreditations. For more details, please see instructions for use (IFU). The IFU can be downloaded from this webpage.

Application

For microscopy. For staining of blood and bone marrow smears and clinical-cytological specimens

Analysis Note

Suitability for microscopy (Blood smear):passes test
Erythrocytes:reddish
Nuclei:violet
Eosinophilic granules:brick-red
Neutrophilic granules:light violet
Lymphocyte cytoplasm:blue

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 1

target_organs

Eyes,Central nervous system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

53.6 °F

flash_point_c

12 °C

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service