CHEMOS
Synthesis-Driven CDMO for Organic Synthesis and Process Development
Our Company
Founded in 2013, CHEMOS works with customers who need difficult organic molecules prepared, routes improved, or early chemistry moved toward a practical supply plan. Many projects begin with a target structure, a CAS number, a route that is not behaving well, or a material that is difficult to source reliably.
Our chemists review the target structure, likely synthetic routes, key transformations, impurity risks, analytical methods, and requested quantity before proposing a workable project path. With R&D capability and production-base support, suitable projects can move from small-scale preparation toward larger project-specific supply.
Our work covers advanced drug-delivery materials such as LNP and GalNAc components, ADC linkers, DOTA/NOTA chelators, PROTAC-related intermediates, molecular glues, and specialty organic compounds where synthetic complexity and clear technical communication matter.
Our Purpose
Our purpose is to make complex chemistry easier to evaluate and move forward. When a customer shares a target molecule or a route question, we help clarify what can be made, what needs to be checked, and what risks should be addressed before scale-up.
Quality starts with disciplined chemistry and transparent documentation. We support customers with practical route feedback, product information, technical communication, and batch-specific analytical data when available.
What We Do
CHEMOS supplies high-barrier core molecules and provides CDMO services for customers working with complex drug-delivery, bioconjugation, radiopharmaceutical, protein-degradation, and specialty organic chemistry projects.
High-Barrier Core Molecules
We prepare and source key intermediates and building blocks for specialized chemistry programs:
Drug Delivery Systems
LNP and GalNAc conjugates for siRNA, ASO, and other nucleic acid therapeutics.
Bioconjugation Chemistry
Optimized connectors enabling stable and effective antibody-drug conjugates.
Radiopharmaceutical Chemistry
DOTA, NOTA, and related bifunctional chelators for radiopharmaceutical applications.
Targeted Protein Degradation
Advanced degraders and glues for targeted protein modulation.
Functional Molecular Building Blocks
A focused catalog of specialty scaffolds for complex organic synthesis.
These molecules are used as specialized components in demanding research and development programs.
Full-Spectrum CDMO Services
Our CDMO work follows the way chemistry projects usually move in practice:
Target & Route Review
target-structure review, route feasibility, and starting-material discussion
Route Optimization
reaction-condition work, impurity review, and process understanding
Custom Synthesis
project-specific preparation for research and process-development needs
Scale-Up Support
scale-up planning and production-base support for suitable projects
Analytical Review
method development, impurity confirmation, and batch-specific data review
The goal is to give customers a clear technical path before committing time and material to larger work.
Why Partner with CHEMOS
Cutting-Edge Reaction Technologies
We possess deep expertise in tackling the most challenging chemical syntheses. From extreme temperature conditions (–110°C to >200°C) to high-pressure reactions (>100 atm) and sensitive reagents, our integrated approach combines advanced synthetic methodologies with green chemistry principles. This enables efficient, scalable, and sustainable production of structurally complex molecules, ensuring your innovative concepts become manufacturable realities.
End-to-End Capability & Speed
Our integrated platform spans early R&D through process development and scale-up support. With quality-managed facilities and flexible reactor trains ranging from lab-scale to larger production systems, we help scale processes while reducing risks and timelines. We deliver cost-effective solutions without compromising quality, supporting your journey from discovery to supply readiness.
Uncompromising Quality & Regulatory Standards
We operate under documented quality practices, supported by state-of-the-art analytical instrumentation and a seasoned quality team. Every batch is fully traceable and can be delivered with project-specific analytical data to support technical evaluation and quality review.