Controlled Environments & Cleanrooms

This carefully selected portfolio is specifically designed to help you prevent potential contamination and maintain aseptic conditions in cleanrooms and controlled environments...

Academic research

Resources to advance fundamental science

Science Delivered

From scientific discovery to scale-up and commercial delivery, Avantor offers mission-critical products, services and solutions on a global scale.

Supporting Research on COVID-19

To support the ongoing research efforts on Coronavirus SARS-CoV-2 causing COVID-19 disease, we've provided easy access to critical products needed for virus research and detection...

So much has changed during this unprecedented time, except your ability to count on Avantor. We continue to set science in motion to create a better world by providing you with the right solutions to keep moving forward.

Avantor fluid handling solutions

We enable biopharma manufacturers with end-to-end fluid management solutions

Avantor Seradigm Sera

The most reliable supply of exceptional quality Fetal Bovine Serum...

Microscopy, Imaging Solutions & Accessories

From most basic microscopes to sophisticated models, image recording systems and cold light sources to consumables.

Environment

A large choice of products and services for complete water, wastewater and soil analysis, on-site and in the laboratory.

J.T.Baker® Robotic Tips

New Avantor® J.T.Baker® premium conductive and non-conductive robotic tips deliver superior quality and reliable performance for results you can trust.

Avantor Services

As your trusted, collaborative partner, Avantor Services helps you increase efficiency, maximize productivity, and accelerate innovation.

The support you need to optimize operations

Avantor Services provides a wide range of specialized services and digital solutions to help you solve complex challenges.

We’ve built our reputation on consistent, comprehensive mastery of day-to-day operations, allowing lab, clinical, and production environments to focus their high-value resources on core scientific priorities.

As our customers’ needs have evolved, so have our capabilities. We have become experts in scientific operations, improving performance with sophisticated solutions and providing guidance on best practices.

You can select and customize services for peak efficiency, quality, and accelerated innovation.

Exciting changes are coming soon—your Punchout account will be redirected and migrated to a new platform on June 16 to enhance your experience! If your company requires our new web certificate and IP address, these can be found here at the very bottom of the page under ‘B2B Avantorsciences.com and Wardsci.com punchout IP and certificates’.

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Osmium tetraoxide 4% (w/w) in water

Description: Osmium tetraoxide 4% (w/w) in water

Catalog Number: ACRO319010050

UOM: 1 * 5 mL

Supplier: Thermo Fisher Scientific

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Osmium tetraoxide 2% in aqueous solution

Description: Osmium tetraoxide 2% in aqueous solution

Catalog Number: 45384.AB

UOM: 1 * 10 mL

Supplier: Thermo Fisher Scientific

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Osmium tetraoxide solution, Sigma-Aldrich®

Description: Osmium tetroxide solution has been used as a fixative in electron microscopy.

Catalog Number: 75633-2ML

UOM: 1 * 2 mL

Supplier: SIGMA ALDRICH MICROSCOPY

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Osmium tetraoxide 4% in aqueous solution, Sigma-Aldrich®

Description: 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.

Catalog Number: 75632-5ML

UOM: 1 * 5 mL

Supplier: SIGMA ALDRICH MICROSCOPY

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Osmium tetraoxide 2.5% (w/w) in tert-butanol stabilised

Description: Osmium tetraoxide 2,5% (w/w) in tert-butanol stabilised

Catalog Number: ACRO197450050

UOM: 1 * 5 mL

Supplier: Thermo Fisher Scientific

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Osmium tetraoxide 2.5% (w/w) in tert-butanol stabilised, AcroSeal®

Description: Osmium tetraoxide 2.5% (w/w) in tert-butanol stabilised, AcroSeal®

Catalog Number: 429081000.

UOM: 1 * 100 mL

Supplier: Thermo Fisher Scientific

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Osmium tetraoxide Sealed ampule, Sigma-Aldrich®

Description: Osmium tetroxide (OsO₄) is a heavy tetrahedral, symmetrical molecule composed of osmium, a third-row transition metal. Osmium tetroxide is both a dye, and a non-coagulant fixative agent in electron microscopy primarily used for the examination of biological tissue components in the histopathology laboratory. Specimens are postfixed with osmium testroxide to ensure preservation of the lipids.

Catalog Number: O5500-250MG

UOM: 1 * 250 mg

Supplier: SIGMA ALDRICH MICROSCOPY

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