Controlled Environment Solutions

Cleanrooms or other controlled environments used for research or manufacturing need specialized products. Avantor can help maintain cleanroom standards with protective apparel and environmental monitoring equipment.

Academic research

Resources to advance fundamental science

LabStart

A laboratory start-up service that ticks all the boxes...

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...

Moving forward. Together.

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

Avantor supports end-to-end fluid management solutions – including peristaltic pumps and aseptic fluid transfer solutions – that are reliable and customer-centric, helping bioprocessing manufacturers meet their research and production goals.

Avantor Seradigm Sera

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

Microscopy

With its extensive selection of microscopy supplies and accessories, Avantor has become a one-stop-shop for customers with both specific and general laboratory equipment needs.

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 and Plates

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, maximise 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.

Sustainability Services for Laboratories

VWR International is both committed and proud to specialise in offering a unique range of laboratory sustainability services...

e-Commerce / VWR Mobile Technology Solutions

VWR continues to offer a state of the art e-Commerce portfolio for customers

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% in aqueous solution, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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.

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

Catalog Number: (429081000.)

Supplier: Thermo Fisher Scientific

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

UOM: 1 * 100 mL

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Osmium tetraoxide 4% (w/w) in water

Supplier: Thermo Fisher Scientific

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

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Osmium tetraoxide solution, Sigma-Aldrich®

Catalog Number: (75633-2ML)

Supplier: SIGMA ALDRICH MICROSCOPY

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

UOM: 1 * 2 mL

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Osmium tetraoxide Sealed ampule, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY

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.