Description
Osmium tetraoxide solution 4 % is a specialised fixative and staining reagent prepared for electron microscopy applications. Based on osmium tetroxide with empirical formula OsO₄, CAS number 20816-12-0 and a molar mass of 254,20 g/mol, the aqueous preparation has a density of 1,01 g/cm³ and a boiling point of 100 °C. Supplied in a 5 ml glass pack, the concentrated solution is intended for careful dilution and use in ultrastructural sample preparation, where it provides strong contrast enhancement of lipids and membranes. This grade from manufacturer Carl ROTH supports fixation and post-staining steps in TEM workflows for cell biology, histology and materials research. EG nr. 244-058-7 identifies the active substance under European chemical inventory rules. Laboratories value the defined 4 % strength for reproducible working solutions when preparing biological specimens for high-resolution imaging. Handle and dispense with appropriate containment practices typical for osmium reagents in the electron-microscopy suite.
This article belongs on Reagents for analysis (Ph. Eur., ASTM, DIN), in Analytical standards & reference materials.
Key features
- Assay (OsO4): 4 % in water
- CAS number: 20816-12-0
- Pack size: 5 ml glass
- Empirical formula: OsO₄
- Molar mass: 254,20 g/mol
- Concentration: 4 % solution
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Osmium tetraoxide solution 4 %, for electron microscopy, 5 ml, glass
What is this article?
Osmium tetraoxide solution 4 %, for electron microscopy, 5 ml, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Reagents for analysis (Ph. Eur., ASTM, DIN), inside Analytical standards & reference materials, in Lab chemicals.
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