
Your Global CDMO Partner in Advancing Therapeutics

Founded in 2013, CHEMOS is a synthesis-driven CDMO dedicated to empowering global pharmaceutical and biotech innovators. We go beyond conventional service provision—our expertise lies in conquering the most challenging molecular complexities, from novel drug delivery systems (LNP/GalNAc) and ADC linkers to RDC chelators (DOTA/NOTA), PROTACs, and molecular glues. By offering both high-value specialty molecules and integrated end-to-end technical support, we help transform cutting-edge science into viable therapeutics.
Our strength is rooted in advanced synthetic methodologies, robust analytical capabilities, and scalable manufacturing—ranging from gram-level R&D quantities to commercial-scale production. Every project is managed with rigorous quality oversight and a collaborative approach, ensuring seamless transitions from early discovery through clinical development. Our scientists work side-by-side with clients to solve complex chemical puzzles, reduce development timelines, and optimize costs without compromising quality.
At CHEMOS, we believe that next-generation therapies demand next-generation thinking. That's why we continuously invest in green chemistry and sustainable processes, aligning innovation with environmental responsibility. As your trusted partner, we are committed to accelerating the delivery of life-changing medicines to patients worldwide, one molecule at a time.
We strive to be recognized worldwide as the preferred CDMO partner for high-complexity modalities—defined by synthetic mastery, supply reliability, and environmental responsibility. Centered on your needs, we build safe, efficient, and resilient supply chains that lower costs and reduce risks, so you can focus entirely on developing life-saving therapies.
We understand that quality is the lifeblood of the pharmaceutical industry. Through rigorous quality control systems and continuous technological innovation, we ensure the provision of stable, reliable, and high-value-added products and services to our global customers.

CHEMOS enables the advancement of cutting-edge therapeutics by supplying high-barrier core molecules and delivering full-spectrum CDMO services tailored to complex drug modalities.
We provide premium-grade key intermediates and building blocks for specialized, high-demand therapeutic areas:
LNP and GalNAc conjugates for siRNA, ASO, and other nucleic acid therapeutics.
Optimized connectors enabling stable and effective antibody-drug conjugates.
DOTA, NOTA, and related bifunctional chelators for radiopharmaceutical applications.
Advanced degraders and glues for targeted protein modulation.
Extensive library of high-purity scaffolds for complex synthesis.
These molecules serve as foundational components for breakthroughs in oncology, rare diseases, gene therapy, and precision medicine.
Our integrated platform supports clients at every stage of development:
synthesis for hit-to-lead and lead optimization
route design, optimization, impurity control, and scale-up
gram to kilogram quantities for preclinical/clinical supply
GMP production with reliable scale-up
method development, validation, stability studies, and QC
We ensure smooth transitions from lab-scale experimentation to large-scale commercial supply with consistent quality and accelerated timelines.

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.

Our fully integrated platform spans early R&D through commercial GMP manufacturing. With multiple GMP-compliant sites and flexible reactor trains ranging from lab-scale to 20,000L, we seamlessly scale processes while reducing risks and timelines. We deliver cost-effective solutions without compromising quality, accelerating your journey from discovery to market.

We operate under rigorous international guidelines, supported by state-of-the-art analytical instrumentation and a seasoned quality team. Every batch is fully traceable and delivered with comprehensive analytical data, ensuring compliance with global pharmacopoeias and providing the confidence needed for clinical and regulatory success.