TACs and Glues

Your Partner in Advanced Targeted Protein Degrader Development

We combine chemistry, deep analytical insight, and translational bioscience to accelerate the design, synthesis, and development of degraders and molecular glues.

From route scouting to proof-of-concept and scale-up, we turn complexity into robust process understanding.

TACs and Glues
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Targeted Protein Degraders (TPDs) hold huge therapeutic promise, but also present unique challenges. TACs are complex bifunctional molecules with poor solubility, scalability risks, analytical blind spots, and proof-of-concept delays, whilst molecular glues have a complex biology that often requires a bespoke solution.

At CatSci, we enable you to overcome these hurdles with end-to-end workflows and phase-appropriate strategies tailored to your needs. We ensure your degrader programme moves forward faster and with fewer risks.

Capabilities Across the Degrader Lifecycle 
Bifunctional Degraders
We design and optimise linkers and assemblies that connect E3 ligases with target warheads, developing scalable routes with purification strategies for complex degraders.
Molecular Glues
Our chemists design glue scaffolds and focused libraries, combining stability testing and bioscience validation to confirm real-world efficacy.
Analytical Support
We deliver bespoke LC-MS, HRMS, and qNMR methods to map impurities and degradation pathways, ensuring purity, identity, and confidence in every batch.
Design-Make-Test-Analyse
Our integrated DMTA workflow links chemistry and biology to refine linker design, ligase binding, and degradation efficiency to accelerate candidate selection.

Dedicated Infrastructure for Protein Degraders

Process Chemistry
250 mL–35 L vessels, gloveboxes, EasyMax/Mya4/Integrity 10 workstations, high-throughput reaction screening
Analytical Science
HPLC, UPLC, HRMS, GC, NMR, DSC, TGA, FTIR, ICP-MS for degrader-specific profiling
Purification
Large-scale (mg to multi-kg), impurity isolation, bespoke chromatography (UV, ELSD, CAD, MS)
Bioscience Suite
Multimodal plate readers, RT-qPCR, flow cytometry, Incucyte™ live-cell imaging, liquid handling for rapid assay cycles, and automated western blotting

Direct-to-Biology for Degraders & Glues

Traditional degrader development often stalls because purification steps slow down iteration. With our Direct-to-Biology (D2B) approach, we bypass these bottlenecks by screening crude reaction mixtures directly in biological assays.

 

  • One-step chemistries (amine coupling, photoreactions, click) executed in assay-ready plates
  • Rapid testing in cell-based assays (NanoBRET, HIBiT degradation, proliferation) and biochemical assays (FP, TR-FRET)
  • Accelerates hit-to-lead by cutting time and material costs
  • Particularly powerful in the targeted protein degradation space, where rapid iteration is critical

 

The result is faster candidate identification, streamlined optimisation, and earlier biological validation.

Why Choose Us

  • Trusted partner to 100+ pharma and biotech companies, including projects with over half of the global Top 10 
  • Cross functional degrader expertise spanning chemistry, bioscience, analytics, and purification 
  • Proven track record of solving complex degrader challenges with scalable, manufacturable solutions  
  • Safebridge-audited containment suites and robust data protection 
  • Transparent communication, scientist-to-scientist updates, and tailored solutions   
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Targeted protein degradation is complex science. It sits at the intersection of chemistry and biology; it requires bold chemistry and rapid decision-making, which we provide. Our role is to transform the complexity into opportunity and create confidence in your programme from day one.
Rob Crook
Technical Director, Chemical Science

Frequently Asked Questions

What targeted protein degrader development services does CatSci provide?

CatSci delivers end-to-end targeted protein degrader development services, covering PROTACs® and other TACs, and molecular glues. We integrate chemistry, analytical science, and bioscience to design, synthesise, purify, and validate bifunctional degraders. Our expertise spans linker design, route optimisation, stability profiling, and translational proof-of-concept to accelerate progress from discovery to IND readiness.

How does CatSci support PROTAC® and molecular glue discovery?

CatSci supports PROTAC® and molecular glue discovery through an integrated chemistry–biology framework. We design and assemble degraders using robust synthetic routes and then validate biological performance through cell-based and biochemical assays. By combining analytical precision with translational bioscience, we generate clear, decision-ready data that de-risks development and strengthens candidate selection.

How does CatSci’s Direct-to-Biology (D2B) approach accelerate degrader development?

CatSci’s Direct-to-Biology platform enables crude reaction mixtures to be screened directly in biological assays, removing purification bottlenecks and saving time. In targeted protein degrader development, D2B allows earlier insight into degradation efficiency, potency, and toxicity, accelerating hit-to-lead optimisation. This approach reduces cycle times, conserves materials, and speeds up proof-of-concept validation.

What makes CatSci a trusted partner for targeted protein degradation programmes?

CatSci is a trusted partner for targeted protein degrader development because we bring together deep expertise across chemistry, analytics, and bioscience. With a proven track record in complex degrader pipelines, advanced analytical methods, and D2B integration, we provide scalable, regulatory-aligned workflows. Our transparent, scientist-to-scientist collaboration ensures every degrader programme moves forward with confidence and clarity.

Book a Consultation

Speak directly with our scientists about your development challenges and explore how we can support your programme.