EM Reagents
  1. Cacodylic acid, sodium salt trihydrate

    Dissolve in distilled or deionized water heated to 60°C, under a hood.

    (Sodium cacodylate)

  2. Nonenyl Succinic Anhydride (NSA)

    Liquid anhydride for curing low viscosity embedding resin for E.M., particularly used in Spurr formulations. Our material is specially distilled for E.M. applications and was developed in conjunction with Dr. Spurr.

  3. Uranyl Formate
    Uranyl Formate
    Catalog Number 24762

    Electron dense, heavy metal compounds of uranium, tungsten and molybdenum have long been utilized for "negative staining" in electron microscopy. As demand for ultra-fine structure in biomolecules has increased, new fine grain structure materials are required.

  4. Ruthenium-Tetroxide-0.5%-stabilized-aqueous-solution

    Useful as a staining agent for electron microscopy of polymers, as well as a fixative for biological samples. Ruthenium tetroxide penetrates tissue very slowly, reacting strongly with proteins, glycogen and monosaccharides.

  5. Cacodylic acid, sodium salt, solution, 0.2M, pH 7.4

    Buffer for fixatives for light and electron microscopy; e.g., osmium tetroxide, formaldehyde, glutaraldehyde, Karnovsky’s fixative.

  6. Propylene Oxide
    Propylene Oxide
    Catalog Number 00236

    Solvent used in the last stage of dehydration of tissue for epoxy embedding.

  7. Osmium tetroxide, 4% solution - 20 x 2ml

    Post fix and stain for E.M. The solution is microfiltered and features exact concentration, no cross contamination, and has excellent stability when kept cold and in the dark. Supplied in pre-scored sealed ampoules with each ampoule having its own ampoule cracker. Used for post staining of DAB/peroxidase to darken and retain stain for long term storage.

  8. Osmium tetroxide, 4% solution - 5 x 10ml

    Post fix and stain for E.M. The solution is microfiltered and features exact concentration, no cross contamination, and has excellent stability when kept cold and in the dark. Supplied in pre-scored sealed ampoules with each ampoule having its own ampoule cracker. Used for post staining of DAB/peroxidase to darken and retain stain for long term storage,

  9. Osmium tetroxide, crystalline, 99.95% - 10x1/4g

    Post fix and stain for E.M. Supplied in pre-scored ampoules sealed in plastic bags. The ampoules are label free to avoid cleaning prior to preparation of solutions. Each ampoule is equipped with an ampoule cracker.

  10. Osmium tetroxide, crystalline, 99.95% - 5x1g

    Post fix and stain for E.M. Supplied in pre-scored ampoules sealed in plastic bags. The ampoules are label free to avoid cleaning prior to preparation of solutions. Each ampoule is equipped with an ampoule cracker.

  11. Osmium tetroxide, crystalline, 99.95% - 10x1/2g

    Post fix and stain for E.M. Supplied in pre-scored ampoules sealed in plastic bags. The ampoules are label free to avoid cleaning prior to preparation of solutions. Each ampoule is equipped with an ampoule cracker.

  12. Osmium tetroxide, 4% solution - 20 x 10ml

    Post fix and stain for E.M. The solution is microfiltered and features exact concentration, no cross contamination, and has excellent stability when kept cold and in the dark. Supplied in pre-scored sealed ampoules with each ampoule having its own ampoule cracker. Used for post staining of DAB/peroxidase to darken and retain stain for long term storage,

  13. Osmium tetroxide, crystalline, 99.95% - 10x1g

    Post fix and stain for E.M. Supplied in pre-scored ampoules sealed in plastic bags. The ampoules are label free to avoid cleaning prior to preparation of solutions. Each ampoule is equipped with an ampoule cracker.

  14. Osmium ammine-B
    Osmium ammine-B
    Catalog Number 21033

    Stable DNA stain.

  15. Formvar 15/95 (Poly[vinyl formal])

    Powder used to make support films on E.M. grids for fragile samples. Polymer contains cyclic acetal units, some residual hydroxyl groups.

    Hydroxyl content 5.0-6.5%; acetate 9.5-13.0 Formal 82%

  16. Lead Citrate, Powdered Fines Grade (< 5 µm) (only for sale within the US)

    The most popular lead stain for EM applications. Carbonate free material.

    Particle Size: >90% particle size is less than ca. 5 µm

  17. ERL-4221 (3,4-Epoxycyclohexanemethyl 3,4-epoxycyclohexanecarboxylate)

    ERL-4221 is a cycloaliphatic, diepoxy functional organic compound that is a useful building block in the production of semi-hard to hard cured epoxy resins. It is incompatible with amines, acids and strong bases and will cure to form a resinous product. ERL-4221 is often used in manufacture of plastic embedding kits for electron microscopy.

  18. Ruthenium hexammine trichloride

    Electron microscopy stain.

  19. Uranyl Acetate 98%, ACS Reagent

    Uranyl acetate improves tissue penetration and contrast without affecting immunolabeling. Useful as positive or negative stain for thin sections.

  20. Blue Platinum EM Stain
    Blue Platinum EM Stain
    Catalog Number 26001

    An EM stain that can replace uranyl acetate in many cases tor staining TEM thin sections. An excellent alternative to uranyl acetate in your lab cannot use radioactive compounds.

  21. Osmium tetroxide, 2% solution - 10 x 2ml

    Post fix and stain for E.M. Microfiltered solution in pre-scored sealed ampoules with each ampoule having its own ampoule cracker.

  22. Osmium tetroxide, 2% solution - 10 x 5ml

    Post fix and stain for E.M. Microfiltered solution in pre-scored sealed ampoules with each ampoule having its own ampoule cracker.

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