Osmiumtetraoxid 4% i vattenlösning, Sigma-Aldrich®

Leverantör: SIGMA-ALDRICH MICROSCOPY
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Synonyms: Osmium (VIII) oxide, Osmic acid anhydride, Osmic acid

M-Clarity™ quality level = MQ100

75632-10ML 75632-5ML
75632-10MLEA 4730 SEK
75632-10ML 75632-5ML
Osmiumtetraoxid 4% i vattenlösning, Sigma-Aldrich®
Osmiumtetraoxid

Osmium tetroxide is also referred to as osmium and is mainly used as a secondary fixative of tissues. The molecule reacts with lipid moieties and is responsible for the oxidation of unsaturated bonds of fatty acids. This reaction adds density and contrast to biological samples. In normal tissues, presence of osmium results in intense black staining which can be viewed by normal eye. In addition, it can be used as a mordant (a molecule which combines with stain or dye at later stages) in electron microscopy, thereby enhancing lead staining.


Osmium tetroxide solution has been used as a fixative in scanning and transmission electron microscopy.

Formel: O₄Os
MW: 254,23 g/mol
Densitet: 1,0 g/ml at 20 °C
Storage Temperature: Kylskåp
MDL Number: MFCD00011150
CAS nummer: 20816-12-0
EINECS: 244-058-7
UN: 3287
ADR: 6.1,II
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Specifikation testresultat

Assay 4.0% OsO₄ in water

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