Frequently asked questions

We supply stable products at room temperature. More sensitive compounds, such as vitamin A, can be supplied with gel packs (temperature around 0°C) or dry ice (-78°C).

Isotope enrichment is mostly determined using NMR, MS, or based on the isotope enrichment of the starting material.

Yes, you can provide us with your preferred vial size and we can pack the compound in the right container with the desired amount.

You have to be careful. Vitamin A has a short shelf life. Check if the Certificate of Analysis (CoA) is still valid and follow the instructions for storing the product.

Yes, we continuously renew our product range. We are the pioneers in research trends.

Then we offer custom synthesis of small organic molecules.

Our main focal areas include reference standards, biological products, metabolics, stable isotopes, labeled compounds, and DNA/RNA building blocks, but our team is trained to propose and perform syntheses of molecules with a large variety of structures.

Multi-step syntheses from milligram to gram scale are being executed in our state-of-the-art laboratories. Our employees offer a wealth of experience built on cooperation with researchers and companies globally.

In general, the desorption process regenerates the material. Unfortunately, it can happen that complete desorption does not occur during the adsorption of a large amount of contaminants, as a result of which the contaminants may be visible in subsequent experiments.

It can continue to be reused. However, depending on the application, this may be a maximum of 100 times.

TENAX® is best used for volatile and semi-volatile substances (boiling point 100-450°C) in the carbon range of C6 and C30, although recent experiments show that even smaller molecules can be efficiently captured and analyzed.

TENAX® has high thermal stability. The material is stable at temperatures up to 350°C. The normal desorption temperature is 300°C.

We are the only manufacturer of TENAX® products worldwide.

TENAX®-TA and TENAX®-GR are both porous polymer adsorbents used in thermal desorption tubes (TD tubes) and gas chromatography for air sampling and analysis. The main difference is that TENAX®-GR is a composite material made by adding 23% graphitized carbon to the standard TENAX®-TA matrix.

We supply stable products at room temperature. More sensitive compounds, such as vitamin A, can be supplied with gel packs (temperature around 0°C) or dry ice (-78°C).

Yes, we continuously renew our product range. We are the pioneers in research trends.

Then we offer custom synthesis of small organic molecules.

Our main focal areas include reference standards, biological products, metabolics, stable isotopes, labeled compounds, and DNA/RNA building blocks, but our team is trained to propose and perform syntheses of molecules with a large variety of structures.

Multi-step syntheses from milligram to gram scale are being executed in our state-of-the-art laboratories. Our employees offer a wealth of experience built on cooperation with researchers and companies globally.

We can develop and produce any TENAX® product for you, in the desired design for specific applications. Just share your requirements with us!

You can dissolve the pellet in a corresponding amount of bi-distilled water.

Please visit our webshop. For every product for which a user manual is available, it can be downloaded directly from the relevant product page.

The concentration can only be determined for our purified monoclonal antibodies. You can find it on the product information sheet.

We can provide an estimated concentration for standard staining. However, you should perform a calibration experiment with different concentrations to determine the correct concentration for your setup.

No, our products are lyophilized antiserum (the polyclonal antibodies) or concentrated supernatant (for the monoclonal antibodies). Refrigeration is not required for transport. For long-term storage, you can store small portions of 1-2 μl at -80°C (or at least -20°C).

Yes, we continuously renew our product range. We are the pioneers in research trends.

Then we offer custom synthesis of small organic molecules.

Our main focal areas include reference standards, biological products, metabolics, stable isotopes, labeled compounds, and DNA/RNA building blocks, but our team is trained to propose and perform syntheses of molecules with a large variety of structures.

Multi-step syntheses from milligram to gram scale are being executed in our state-of-the-art laboratories. Our employees offer a wealth of experience built on cooperation with researchers and companies globally.

Any volume. Because we work with partners and produce ourselves, we can deliver any volume. From milligrams to tons.

Small budgets are welcome with us: we are also open to projects with budgets under €10.000. We grow along with your growth volume.

No, we can produce compounds in a wide range of t fields with diverse chemical structures. You can contact us and we will discuss all the details during a video conference.

We are happy to assist you in scaling up your synthesis from a few grams to larger quantities. To do this, we call upon our colleagues at RMC Apeldoorn. They are specialists who can support you in this.

Yes, we offer custom synthesis for various complex molecules. We can design a synthesis route and produce from milligrams to grams within a few weeks.

We are not a toll manufacturer. You have come to the wrong place for contract manufacturing only.

We help researchers and medical technologists as a co-development partner – by advising on smarter R&D routes and by thinking alongside them. We share our experience, our knowledge and skills.

Read more about our services.

Our customers have thousands to millions in revenue. So from small to big: all are welcome.

Yes, you can find our Buchem, TENAX® and Swant products in our webshop.

The steps of our thorough synthesis process are:

1. Initial inquiry and technical discussion

2. Feasibility assessment and quotation

3. Route design and development

4. Lab-scale synthesis

5. Optimization

6. Scale-up

7. Purification and quality control

8. Documentation and delivery

9. Follow-on work (optional)

Depending on your product request, not all steps are necessary.

Because we are a growth company ourselves, we understand all the ups and downs you’re going through. We have a proven record that we can handle it.

Michele Leuenberger, Managing Director Bern, is responsible for the analytical and synthesis services that support you in this area.

Besides the NDA and CDA agreements, we implement production and design trials for customers in dedicated production environments that can only be accessed by the client and selective operators for this process. The design of the production units does not allow visibility to others.

Any volume. Because we work with partners and produce ourselves, we can deliver any volume. From milligrams to tons.

Our entire management team is available for contact.

We take over the production at our premises for volumes from mg’s till tons. We can think with you for redesigning your processes at any scale.

No matter how small their number, no matter how far outside the blueprint of standard medicine their condition falls, we choose their side.
We respond by co-developing and delivering high-grade chemical products. By co-developing new medical devices. By supporting researchers and medical technologists in their search for groundbreaking treatments and therapies.

Read more about us.

We help researchers and medical technologists as a co-development partner – by advising on smarter R&D routes and by thinking alongside them. We share our experience, our knowledge and skills.

Read more about our services.

Yes, you can find our Buchem, TENAX® and Swant products in our webshop.

Small budgets are welcome with us: we are also open to projects with budgets under €10.000. We grow along with your growth volume.

Our customers have thousands to millions in revenue. So from small to big: all are welcome.

Any volume. Because we work with partners and produce ourselves, we can deliver any volume. From milligrams to tons.

The steps of our thorough synthesis process are:

1. Initial inquiry and technical discussion

2. Feasibility assessment and quotation

3. Route design and development

4. Lab-scale synthesis

5. Optimization

6. Scale-up

7. Purification and quality control

8. Documentation and delivery

9. Follow-on work (optional)

Depending on your product request, not all steps are necessary.

Any volume. Because we work with partners and produce ourselves, we can deliver any volume. From milligrams to tons.

Yes, we continuously renew our product range. We are the pioneers in research trends.

Yes, we are a strong player in analytical services. We talk your language. We are the right place for difficult questions and specific topics in the field of NMR.

Because we are a growth company ourselves, we understand all the ups and downs you’re going through. We have a proven record that we can handle it.

Our entire management team is available for contact.

You can check our current job offers here.
Check this page regularly to see if there are new opportunities.

We are happy to share our knowledge with you. Here you will find an overview of our downloads.

Product-specific information can be downloaded directly from the relevant product page. Please visit our webshop.

Here you will find an overview of our contact details.

Here you can download the general terms and conditions of our legal identities.