Acide osmique 4% en solution aqueuse, Sigma-Aldrich®
Marques : SIGMA ALDRICH MICROSCOPYTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Danger
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Synonyme(s):
Osmium (VIII) oxyde, Tétraoxyde d'osmium
M-Clarity™ (Niveau de Qualité) = 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.
Formule:
O₄Os Poids moléculaire: 254.23 g/mol Point d'ébullition: 130 Point de fusion: 40 Densité: 1,0 g/ml at 20 °C Température de stockage: Réfrigérateur |
Numéro MDL:
MFCD00011150 Numéro CAS: 20816-12-0 EINECS: 244-058-7 UN: 3287 ADR: 6.1 II Indice Merck: 13,06962 |
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Résultats des tests de spécification
Assay | 4.0% OsO₄ in water |
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