Accessibility Links

Skip to main contentAccessibility help
Accessibility feedback
Seasonal Holidays 2025
Go to Google home
Press / to jump to the search box
Choose what you’re giving feedback on
  • Delete
  • See more
  • Delete
    • See more
    • Report inappropriate predictions
    Quick Settings
    Sign in

    Filters and Topics

    AI Mode
    All
    Shopping
    Images
    Short videos
    Forums
    Videos
    More
    News
    Web
    Maps
    Books
    Tools
    Any time
    Any time
    Past hour
    Past 24 hours
    Past week
    Past month
    Past year
    Custom range...
    Custom date range
    Go
    All results
    All results
    Verbatim
    Advanced Search
    About 12,100 results (0.35s) 
    Ctrl+Shift+X to select

    Refine results

    • Form
      • Powder
      • Liquid
      • Crystals
    • Category
      • Lab Chemicals & Reagents
      • Moisturizers
      • Books
      • Medicines & Treatments
    • Color
      • Pink
      • Purple
      • White
      • Gray
    • Price
      • Under $45
      • $45 - $100
      • $100 - $250
      • Over $250
      • $
        Please provide a valid price.
        $
        Please provide a valid price.
    • Sort by
      • Price: low to high
      • Price: high to low
    • Stores
      • Thermo Fisher Scientific
      • Fisher Scientific
      • eBay
      • Sigma-Aldrich
      See more
    • Free shipping
      • Free shipping
    • Brand
      • Purina
      • Electron Microscopy Sciences
      • Ultradent
      • Chemsavers
      See more
    Failed to load more results. Please try again later.
    Powder
    Liquid
    Lab Chemicals & Reagents
    Price
    For Sale
    On sale
    Usa
    Crystals
    Buy
    Moisturizers
    Books
    Medicines & Treatments
    Reviews
    Pink
    Under $45
    Online
    Brand
    Purple
    White
    Gray
    Supplements
    Small business
    Capsule
    Free shipping

    Search Results

    AI Overview

    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    There is no single "best selling" osmium tetroxide
    , as the best product depends on the user's specific needs, particularly for research and microscopy. However, common best sellers include high-purity crystalline forms for microscopy from suppliers like SPI Supplies and Electron Microscopy Sciences, as well as various grades (such as AR and EM) and solution concentrations from chemical supply companies like Ladd Research and Sigma-Aldrich. 
    Key products and brands 
    • For electron microscopy: High-purity crystalline or aqueous solutions are the most common and sought-after forms, often marketed as "EM Grade".
      • SPI Supplies: Offers a 4% aqueous solution in 5ml ampoules.
      • Electron Microscopy Sciences (EMS): Provides crystalline osmium tetroxide in small ampoules for high-purity requirements.
      • Sigma-Aldrich: Sells 2% solutions specifically for electron microscopy and other grades for general laboratory use.
    • For general laboratory and research: These products are often available in different purity levels (e.g., AR Grade) and quantities.
      • Ladd Research: Offers AR Grade crystalline osmium tetroxide in various ampoule sizes.
      • Amazon: Sells a variety of certified and AR-grade products for research and development.
      • Heraeus: Provides osmium tetroxide for both research and industrial applications. 
    Factors to consider when buying 
    • Application: If you are performing electron microscopy, an EM Grade solution or crystal is essential.
    • Purity: Look for high purity grades like 99.95% or EM Grade for sensitive applications.
    • Form: Decide between crystalline, powder, or aqueous solution depending on your needs. Aqueous solutions are often more convenient to use for microscopy.
    • Quantity and price: Many suppliers offer tiered pricing for bulk purchases, making it more economical to buy larger quantities. 
    • Osmium Tetroxide For Electron Microscopy | Price & Info | EMS
      Osmium Tetroxide, Crystalline, Highest Purity, 99.95% (Osmic Acid Anhydride) OsO4 F.W. 254.20 CAS #20816-12-0. Melting Range : 39.
      Electron Microscopy Sciences·Electron Microscopy Sciences
      5:30
    • SPI-Chem Osmium Tetroxide, EM Grade
      Osmium tetroxide is a key fixative for transmission electron microscopy (TEM). It must be absolutely pure. SPI Supplies specialize...
      SPI Supplies
    • Osmium Tetroxide, AR Grade, Crystals - Ladd Research
      Very High Purity - 99.995%, Color - Pale Yellow, Boiling Point - 129.7oC, Formula Weight - 254.2, Vapor Pressure @ 25oC - 9.8mm Hg...
      Ladd Research
    Show all
    • Osmium Tetroxide For Electron Microscopy | Price & Info | EMS
      Osmium Tetroxide, Crystalline, Highest Purity, 99.95% (Osmic Acid Anhydride) OsO4 F.W. 254.20 CAS #20816-12-0. Melting Range : 39.
      Electron Microscopy Sciences·Electron Microscopy Sciences
      5:30
    • SPI-Chem Osmium Tetroxide, EM Grade
      Osmium tetroxide is a key fixative for transmission electron microscopy (TEM). It must be absolutely pure. SPI Supplies specialize...
      SPI Supplies
    • Osmium Tetroxide, AR Grade, Crystals - Ladd Research
      Very High Purity - 99.995%, Color - Pale Yellow, Boiling Point - 129.7oC, Formula Weight - 254.2, Vapor Pressure @ 25oC - 9.8mm Hg...
      Ladd Research
    • Osmium tetroxide for electron microscopy, 4 water 20816-12-0
      Table_title: This Item Table_content: header: | This Item | 75633 | 201030 | row: | This Item: Sigma-Aldrich 75632 Osmium tetroxid...
      Sigma-Aldrich
    • Osmium Tetroxide
      Heraeus offers osmium tetroxide in small quantities for research projects and large quantities for industrial applications. Osmium...
      Heraeus Precious Metals
    • Osmium Tetroxide, Crystalline, 0.5g 10/CS - Amazon.com
      Product Summary: Osmium Tetroxide, Crystalline, 0.5g 10/CS ... Small size (2ml) in light-gauge, pre-scored amber glass ampoules co...
      Amazon.com
    • Osmium Tetroxide, 100.0%, Certified, 1g - Amazon.com
      Product Description. Osmium Tetroxide, 100.0%, Certified, 1g (Hazmat Fee Included in Price) For Research & Development Not for dru...
      Amazon.com
    • SPI-Chem Osmium Tetroxide, Sealed Glass Ampoules, Crystalline | Z02601
      Table_title: SPI-Chem Osmium Tetroxide, Sealed Glass Ampoules, Crystalline Table_content: header: | Quantity | Price | row: | Quan...
      SPI Supplies
    • SPI-Chem Aqueous Osmium Tetroxide, EM Grade | Z02595
      Table_title: SPI-Chem Aqueous Osmium Tetroxide, EM Grade Table_content: header: | Size | 4%, 5ml ampoule | row: | Size: Item | 4%,
      SPI Supplies
    • Osmium Tetroxide, 4% (w/v) Aqueous Solution - Laboratory Chemicals
      Table_title: Quick Overview Table_content: header: | Product Name | Price | row: | Product Name: 55091 - Osmium Tetroxide, 4% (w/v...
      Ladd Research
    Dive deeper in AI Mode
    AI responses may include mistakes. Learn more
    Thank you
    Your feedback helps Google improve. See our Privacy Policy.
    Share more feedbackReport a problemClose
    Positive feedback
    Negative feedback
    Thank you
    Your feedback helps Google improve. See our Privacy Policy.
    Share more feedbackReport a problemClose
    Thank you
    Your feedback helps Google improve. See our Privacy Policy.
    Share more feedbackReport a problemClose
    Show more
    Explain this
    Related images
    Copy text
    Access this menu with Ctrl+Shift+X
    My Ad Center

    Osmium Tetroxide - EMS - Electron Microscopy Sciences


    Electron Microscopy Sciences
    https://www.emsdiasum.com › osmium-tetroxide
    Electron Microscopy Sciences
    https://www.emsdiasum.com › osmium-tetroxide
    Buy Osmium Tetroxide, Crystalline, Highest Purity (99.95%). Convenient 2ml ampoules for contamination-free solutions from Electron Microscopy Sciences.
    Best selling Osmium Tetroxide from www.emsdiasum.com
    Missing: Best ‎| Show results with: Best
    People also ask
    How expensive is osmium tetroxide?
    SPI-Chem Osmium Tetroxide, Sealed Glass Ampoules, Crystalline
    QuantityPrice
    1 to 9$23.50
    10 to 29$21.15
    30 and up$19.98

    SPI-Chem Osmium Tetroxide, Sealed Glass Ampoules, Crystalline | Z02601


    SPI Supplies
    https://www.2spi.com › item
    SPI Supplies
    https://www.2spi.com › item
    Is OsO4 expensive?
    OsO4 is expensive and highly toxic, making it an unappealing reagent to use in stoichiometric amounts. However, its reactions are made catalytic by adding reoxidants to reoxidise the Os(VI) by-product back to Os(VIII).

    Osmium tetroxide - Wikipedia


    Wikipedia, the free encyclopedia
    https://en.wikipedia.org › wiki › Osmium_tetroxide
    Wikipedia, the free encyclopedia
    https://en.wikipedia.org › wiki › Osmium_tetroxide
    What is the alternative to osmium tetroxide?
    Potassium permanganate
    Potassium permanganate and tetraethylammonium chloride are a safe and effective substitute for osmium tetroxide in solid-phase fluorescent chemical cleavage of mismatch.

    Potassium permanganate and tetraethylammonium chloride are a ...


    Oxford Academic - Oxford University Press
    https://academic.oup.com › nar › article
    Oxford Academic - Oxford University Press
    https://academic.oup.com › nar › article
    Do KMnO4 and OsO4 do the same thing?
    With osmium tetroxide, OsO4, is used catalyically and the peroxide is a co-oxidant. Potassium permanganate, KMnO4 which turns from purple to colourless during the reaction can be used as a simple functional group test. During these reactions, the two oxygen atoms are transferred from the same species at the same time.

    Ch15 : Alkenes to 1,2-diols - University of Calgary


    University of Calgary
    https://chem.ucalgary.ca › courses
    University of Calgary
    https://chem.ucalgary.ca › courses
    Feedback

    Osmium Tetroxide, AR Grade, Crystals


    Ladd Research
    https://www.laddresearch.com › Laboratory Chemicals
    Ladd Research
    https://www.laddresearch.com › Laboratory Chemicals
    20275 - Osmium Tetroxide, AR Grade, Crystals, 0.5 g Ampule. $30.95 ; 20280 - Osmium Tetroxide, AR Grade, Crystals, 1.0 g Ampule. $43.95 ; 20279 - Osmium Tetroxide ...See more
    Best selling Osmium Tetroxide from www.laddresearch.com
    Missing: Best ‎| Show results with: Best

    Osmium Tetroxide, 100.0%, Certified, 1g


    Amazon.com
    https://www.amazon.com › Osmium-Tetroxide-100-0-C...
    Amazon.com
    https://www.amazon.com › Osmium-Tetroxide-100-0-C...
    Osmium Tetroxide, 100.0%, Certified, 1g (Hazmat Fee Included in Price) For Research & Development Not for drug, clinical use in humans, for food or food ...See more
    Best selling Osmium Tetroxide from www.amazon.com

    Osmium tetroxide, 2% solution - 10 x 5ml


    Polysciences
    https://polysciences.com › products › osmium-tetroxide-...
    Polysciences
    https://polysciences.com › products › osmium-tetroxide-...
    Microfiltered solution in pre-scored sealed ampoules with each ampoule having its own ampoule cracker.See more
    Best selling Osmium Tetroxide from polysciences.com
    Missing: selling ‎| Show results with: selling

    China Best selling Osmium Tetroxide wholesale ...


    Anhui Techchem Industrial Co.,Ltd.
    https://www.techemi.com › best-selling-osmium-tetroxid...
    Anhui Techchem Industrial Co.,Ltd.
    https://www.techemi.com › best-selling-osmium-tetroxid...
    techemi.com - A professional Best selling Osmium Tetroxide manufacturer and factory,offer high quality Best selling Osmium Tetroxide with competitive price!

    SPI-Chem Osmium Tetroxide, EM Grade


    SPI Supplies
    https://www.2spi.com › category › chemicals-spi-chem-...
    SPI Supplies
    https://www.2spi.com › category › chemicals-spi-chem-...
    The SPI-Chem™ brand of osmium tetroxide is EM grade and is available either as pure 99.995% crystals or, for convenience, as aqueous solutions. Both forms of ...See more
    Missing: Best ‎selling

    Buy Osmium Tetroxide Crystals & Solutions


    Heraeus Precious Metals
    https://www.heraeus-precious-metals.com › ... › Osmium
    Heraeus Precious Metals
    https://www.heraeus-precious-metals.com › ... › Osmium
    Heraeus offers osmium tetroxide crystals and osmium tetroxide solution in small quantities for research projects as well as large quantities for industrial ...See more
    Best selling Osmium Tetroxide from www.heraeus-precious-metals.com

    Osmium tetroxide for electron microscopy, 2 water 20816- ...


    Sigma-Aldrich
    https://www.sigmaaldrich.com › product › sigma
    Sigma-Aldrich
    https://www.sigmaaldrich.com › product › sigma
    Osmium tetroxide; Osmium tetroxide solution has been used as a fixative in electron microscopy. Bulk and Prepack available at Sigmaaldrich.com.
    Best selling Osmium Tetroxide from www.sigmaaldrich.com

    After years of only seeing it in textbooks and papers, I ...


    Reddit · r/chemistry
    160+ comments · 3 years ago
    Reddit · r/chemistry
    160+ comments · 3 years ago
    After years of only seeing it in textbooks and papers, I finally met the infamous osmium tetroxide in person. $400 ampoule of 1g. Archived post.See more

    Osmium tetroxide, 99.9+%, (trace metal basis) 100 mg


    Fisher Scientific
    https://www.fishersci.com › ... › Transition Metal Salts
    Fisher Scientific
    https://www.fishersci.com › ... › Transition Metal Salts
    Osmium tetroxide, 99.9+%, (trace metal basis) 100 mg | Buy Online | Thermo Scientific Chemicals | Fisher Scientific.See more
    Missing: selling ‎| Show results with: selling
    Popular products
    • Osmium Tetroxide, AR Grade, Crystals.
      Osmium Tetroxide, AR Grade, Crystals
      $30.95
      Ladd Research Industries
      Osmium Tetroxide, AR Grade, Crystals
      $30.95
      Ladd Research Industries
    • Osmium Tetroxide CAS 20816-12-0.
      Osmium Tetroxide CAS 20816-12-0
      $117.00
      Santa Cruz Biotechnology
      5.0(1)
      Osmium Tetroxide CAS 20816-12-0
      $117.00
      Santa Cruz Biotechnology
      5.0(1)
    • Osmium Tetroxide, 4% (w/v) Aqueous Solution.
      Osmium Tetroxide, 4% (w/v) Aqueous Solution
      $15.25
      Ladd Research Industries
      Osmium Tetroxide, 4% (w/v) Aqueous Solution
      $15.25
      Ladd Research Industries
    • Osmium Tetroxide, 100.0%, by Sigma-Aldrich, Certified, 1g (Hazmat Fee Included).
      Osmium Tetroxide, 100.0%, by Sigma-Aldrich, Certified, 1g (Hazmat Fee Included)
      $235.00
      Chemsavers Inc
      Osmium Tetroxide, 100.0%, by Sigma-Aldrich, Certified, 1g (Hazmat Fee Included)
      $235.00
      Chemsavers Inc
    • Osmium Tetroxide, Acs Reagent, 99.8%.
      Osmium Tetroxide, Acs Reagent, 99.8%
      $67.13
      GFS Chemicals
      Osmium Tetroxide, Acs Reagent, 99.8%
      $67.13
      GFS Chemicals
    • Osmium Tetroxide, Solution, 0.01 M In 0.1 M Sulfuric Acid,25 ML - 54201.
      Osmium Tetroxide, Solution, 0.01 M In 0.1 M Sulfuric Acid,25 ML - 54201
      $97.00
      labproinc.com
      Osmium Tetroxide, Solution, 0.01 M In 0.1 M Sulfuric Acid,25 ML - 54201
      $97.00
      labproinc.com
    • Sigma-Aldrich Osmium Tetroxide ACS Reagent.
      Sigma-Aldrich Osmium Tetroxide ACS Reagent
      $319.54
      Capitol Scientific       & more
      Sigma-Aldrich Osmium Tetroxide ACS Reagent
      $319.54
      Capitol Scientific       & more
    • Sigma-Aldrich Osmium Tetroxide Solution CAS 20816-12-0.
      Sigma-Aldrich Osmium Tetroxide Solution CAS 20816-12-0
      $186.00
      Sigma-Aldrich
      Sigma-Aldrich Osmium Tetroxide Solution CAS 20816-12-0
      $186.00
      Sigma-Aldrich
    • Osmium Tetroxide, (4% in Water), 10 mL.
      Osmium Tetroxide, (4% in Water), 10 mL
      $185.79
      CP Lab Safety
      Free delivery
      Osmium Tetroxide, (4% in Water), 10 mL
      $185.79
      CP Lab Safety
      Free delivery
    • Osmium Tetroxide 10mL MPN:O0308-10ML.
      Osmium Tetroxide 10mL MPN:O0308-10ML
      $240.99
      GoVets.com
      Free delivery
      Osmium Tetroxide 10mL MPN:O0308-10ML
      $240.99
      GoVets.com
      Free delivery
    More products
    • Osmium Tetroxide, Reagent (Acs), 99.8%,250 MG - 83781.
      Osmium Tetroxide, Reagent (Acs), 99.8%,250 MG - 83781
      $67.13
      labproinc.com
      Osmium Tetroxide, Reagent (Acs), 99.8%,250 MG - 83781
      $67.13
      labproinc.com
    • Electron Microscopy Sciences Osmium Tetroxide, 20816-12-0, MFCD00011150, 10x1 g.
      Electron Microscopy Sciences Osmium Tetroxide, 20816-12-0, MFCD00011150, 10x1 g
      $363.83
      Fisher Scientific
      Electron Microscopy Sciences Osmium Tetroxide, 20816-12-0, MFCD00011150, 10x1 g
      $363.83
      Fisher Scientific
    • 9% OFF
      Thermo Scientific Chemicals Osmium tetroxide, 99.9+%, (trace metal basis). 9% OFF.
      Thermo Scientific Chemicals Osmium tetroxide, 99.9+%, (trace metal basis)
      $66.65$74
      Thermo Fisher Scientific
      9% OFF
      Thermo Scientific Chemicals Osmium tetroxide, 99.9+%, (trace metal basis)
      $66.65$74
      Thermo Fisher Scientific
    • Spectrum Chemical TCI-O0308-10ML, Osmium Tetroxide, (4 Percent in Water), ACS.
      Spectrum Chemical TCI-O0308-10ML, Osmium Tetroxide, (4 Percent in Water), ACS
      $147.07
      Capitol Scientific
      Spectrum Chemical TCI-O0308-10ML, Osmium Tetroxide, (4 Percent in Water), ACS
      $147.07
      Capitol Scientific
    • Osmium Tetroxide(4% in Water), 10ML - O0308-10ML.
      Osmium Tetroxide(4% in Water), 10ML - O0308-10ML
      $142.07
      labproinc.com
      Osmium Tetroxide(4% in Water), 10ML - O0308-10ML
      $142.07
      labproinc.com
    • Osmium tetroxide solution, 4 wt. % in H2O, 5 mL.
      Osmium tetroxide solution, 4 wt. % in H2O, 5 mL
      $331.04
      Cenmed Enterprises
      Free delivery on $500+
      Osmium tetroxide solution, 4 wt. % in H2O, 5 mL
      $331.04
      Cenmed Enterprises
      Free delivery on $500+
    • Osmium tetroxide Reagent Grade, 99.8%.
      Osmium tetroxide Reagent Grade, 99.8%
      $472.54
      Thomas Scientific
      Osmium tetroxide Reagent Grade, 99.8%
      $472.54
      Thomas Scientific
    • Osmium Tetroxide, 0.01 M Solution in 0.1 M Sulfuric Acid.
      Osmium Tetroxide, 0.01 M Solution in 0.1 M Sulfuric Acid
      $127.07
      Thomas Scientific
      Osmium Tetroxide, 0.01 M Solution in 0.1 M Sulfuric Acid
      $127.07
      Thomas Scientific
    • Polysciences, Inc. Osmium tetroxide, 4% solution - 20 x 2ml.
      Polysciences, Inc. Osmium tetroxide, 4% solution - 20 x 2ml
      $152.03
      Fisher Scientific
      Polysciences, Inc. Osmium tetroxide, 4% solution - 20 x 2ml
      $152.03
      Fisher Scientific
    • Electron Microscopy Sciences EMS Osmium Tetroxide 4% Solution 2 ML.
      Electron Microscopy Sciences EMS Osmium Tetroxide 4% Solution 2 ML
      $71.61
      Fisher Scientific
      Electron Microscopy Sciences EMS Osmium Tetroxide 4% Solution 2 ML
      $71.61
      Fisher Scientific

    Ads

    People also ask
    Feedback
    People also search for
    Osmium tetroxide solution
    1% osmium tetroxide
    Osmium tetroxide price
    Osmium tetroxide tem
    Osmium tetroxide SDS
    Osmium tetroxide SEM
    Microscopy equipment

    Page Navigation

    12345678910Next

    Footer Links

    District of Columbia
     - Based on your past activity
     - 
    Update location
    Can't update your location
    Learn more
    Updating location...
    HelpSend feedbackPrivacyTerms
    Google apps
    AI overview is ready