Tetróxido de osmio 4% en solución acuosa, Sigma-Aldrich®

Proveedor: SIGMA ALDRICH MICROSCOPY
Peligro

Sinónimos: Osmio (VIII) óxido

M-Clarity™ quality level = MQ100

75632-10ML 75632-5ML
75632-10MLEA 464 EUR
75632-10ML 75632-5ML
Tetróxido de osmio 4% en solución acuosa, Sigma-Aldrich®
Tetróxido de osmio

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.

Formula: O₄Os
MW: 254,23 g/mol
Densidad: 1,0 g/ml at 20 °C
Temperatura de almacenaje: Nevera
Número MDL: MFCD00011150
Núm. CAS: 20816-12-0
EINECS: 244-058-7
UN: 3287
ADR: 6.1,II
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Resultados test especificaciones

Assay 4.0% OsO₄ in water

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