Facilitate your journey from precursor to patient with our new comprehensive catalog

How many suppliers do you need to move one molecule to the patient?

At Trasis, we bring together our expertise in chemistry, radiochemistry and GMP manufacturing of API precursors to support your molecule from early development all the way to patient administration.
With more than 30 years of experience in chemical manufacturing for the pharmaceutical and radiopharmaceutical industry, we offer fully integrated CDMO services that combine speed, reliability and uncompromising quality.

Our teams focus on developing and manufacturing the critical components used in radiopharmaceutical building blocks (small molecule and peptide precursors and cold references).
Whether you need catalog precursors, custom development, or GMP scale-up, you benefit from a seamless, end-to-end path from molecule to patient.

Developing a radiopharmaceutical is complex.
But sourcing your precursors shouldn’t slow you down.

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A scalable portfolio of precursors

precursor catalog preview

Our catalog covers a wide range of small molecule precursors and peptide-based ingredients available from Research to GMP Grade.
It includes high value building blocks for PET and SPECT tracers designed to fit industrial radiolabeling workflows.

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From ideas to tracers: what our precursors look like in practice

Among the available ingredients, several precursors are already supporting the development of next generation tracers.

NOTA-Octreotide

NOTA-Octreotide trifluoroacetate is a somatostatin analogue optimized for stable complexation with aluminum-[18F] fluoride in a rapid one-pot radiolabeling process.

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CumiBi

Copper tetramibi tetrafluoroborate ([Cu(MIBI)₄BF₄]) serves as the essential precursor for the synthesis of the SPECT tracer [⁹⁹ᵐTc]sestamibi, which is used in myocardial perfusion imaging, thyroid/parathyroid scintigraphy, and breast cancer detection.

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TET

TET (O-(2-tosyloxyethyl)-N-trityl-L-tyrosine tert-butyl ester) is a small-molecule precursor designed for the production of [18F]FET via a direct nucleophilic [18F]-fluorination.
This essential amino acid based tracer targets L-type amino acid transport (LAT1) upregulated in brain tumors, providing high tumor-to-brain contrast for glioma delineation, treatment response assessment, and distinguishing tumor recurrence from radiation necrosis.

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Co-building the API precursor catalog – together with you

This catalog is not a fixed list. It is designed to evolve with your projects.

At Trasis, we continuously expand our API precursor portfolio to support innovation in radiopharmaceutical development.
We believe the most relevant solutions are built in close collaboration with our customers, by listening to real-world needs and turning them into concrete, usable ingredients.

Whether you are looking for:

Complex intermediates such as prosthetic groups and chelators
New small-molecule or peptide precursors
Tailored grades adapted to your development or regulatory requirements
Specific vialing formats aligned with your workflows
Cold references
Or integrated solutions, compatible with Trasis synthesis platforms or any other system

We are open to exploring, developing, and delivering what matters for your programs.
Your feedback, challenges, and ideas directly help shape the next additions to the catalog.
By combining your application insight with our expertise in chemistry, manufacturing, and automation, we aim to transform unmet needs into robust, ready-to-use API precursors.

Contact us and let’s co-create the next version of the catalog – built to match your science, your constraints, and your ambitions.

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Fully integrated solution: From API precursor development to drug product manufacturing

api production

Beyond the catalog, Trasis provides comprehensive services from precursor synthesis to sterile fill and finish of ready-to-use drug products.
Our dual GMP manufacturing sites (France and Belgium) and quality and regulatory teams help you derisk scale-up, secure supply and accelerate time to market.

You can rely on:

Custom API precursor development, route scouting, process optimization and manufacturing.
Custom cold kit development and manufacturing
Sterile and non-sterile vial filling, lyophilization and clinical supply packaging under strict GMP.
Regulatory support, from documentation packages to agency interactions, to keep your programs on track globally.

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New precursor catalog now available to accelerate your radiopharmaceutical development