Tetrossido di osmio 4% in soluzione acquosa, Sigma-Aldrich®
Fornitore: SIGMA-ALDRICH MICROSCOPY
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Pericolo
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Synonyms:
Osmio (VIII) ossido, Osmio tetrossido
M-Clarity™ quality level = MQ100
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 Peso molecolare: 254,23 g/mol Densità: 1,0 g/ml at 20 °C Temperatura di stoccaggio: Refrigerata |
MDL Number:
MFCD00011150 CAS Number: 20816-12-0 EINECS: 244-058-7 UN: 3287 ADR: 6.1,II |
Risultati del test di specificazione
Assay | 4.0% OsO₄ in water |
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