Stable Isotope Labeled Compounds Market Size and Share
Stable Isotope Labeled Compounds Market Analysis by Mordor Intelligence
The stable isotope labeling market was valued at USD 315.70 million in 2025 and is forecast to reach USD 366.67 million by 2030, advancing at a 3.05% CAGR over the period Mordor Intelligence. Demand is rising as quantitative proteomics, metabolomics, and microdosing studies move from research settings into regulated drug-development workflows. Carbon-13 remains the tracer of choice for metabolic pathway analysis, while oxygen-18 is gaining momentum on the back of FDA-approved F-18 radiopharmaceuticals. Pharmaceutical outsourcing to Asia is expanding the customer base, and ultra-high-resolution mass spectrometers are pushing purity specifications higher. At the same time, constrained supplies of 18O-water and nitrogen-15 heighten the need for supply-chain resilience.
Key Report Takeaways
- By isotope type, carbon-13 led with 42.34% of stable isotope labeling market share in 2024, while oxygen-18 is projected to grow at a 4.12% CAGR to 2030.
- By compound category, amino acids and peptides accounted for 38.56% of stable isotope labeling market size in 2024; active pharmaceutical ingredients are expanding at a 4.43% CAGR through 2030.
- By application, research activities commanded 47.45% revenue share in 2024; clinical diagnostics is the fastest-growing segment at a 4.73% CAGR to 2030.
- By end-user, pharmaceutical and biotechnology companies held 51.25% of demand in 2024, whereas contract research and manufacturing organizations are advancing at a 5.04% CAGR through 2030.
- By geography, North America retained 45.45% revenue share in 2024; Asia-Pacific is forecast to expand at a 5.34% CAGR to 2030.
Global Stable Isotope Labeled Compounds Market Trends and Insights
Driver Impact Analysis
Driver | (~) % Impact on CAGR Forecast | Geographic Relevance | Impact Timeline |
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Rising demand for quantitative proteomics & metabolomics | +0.8% | North America, EU, spreading global | Medium term (2-4 years) |
Expansion of SIL-based companion diagnostics | +0.6% | North America, EU, spill-over to APAC | Long term (≥ 4 years) |
Growing 13C-labelled APIs for microdosing | +0.5% | US, Japan, global follow-on | Short term (≤ 2 years) |
Heightened biopharma outsourcing to isotope CROs in Asia | +0.4% | India, China core | Medium term (2-4 years) |
Commercialisation of deep-labelled PFAS reference standards | +0.3% | Global | Long term (≥ 4 years) |
Development of green electro-enzymatic exchange synthesis | +0.2% | EU, North America | Long term (≥ 4 years) |
Source: Mordor Intelligence
Rising Demand for Quantitative Proteomics & Metabolomics
Integration of stable isotope tracers with mass spectrometers that resolve more than 1,000,000 data points enables precise protein turnover and metabolic-flux mapping. Multiplexed tags now process dozens of samples in a single run, broadening adoption for oncology biomarker programs. Single-cell proteomics uses isotopic barcodes to measure protein expression variability within tumors, a capability critical for patient-matched therapies. Pharmaceutical laboratories rely on labeled internal-standard peptides to validate high-throughput assays, and universities leverage isotope-resolved metabolic profiling to interpret disease mechanisms. These factors continually reinforce the stable isotope labeling market as an indispensable tool set for precision medicine initiatives.
Expansion of SIL-Based Companion Diagnostics
Flurpiridaz F-18’s 2025 FDA clearance validated the route for isotope-labeled diagnostics that pair imaging and therapy[1]Source: Society of Nuclear Medicine and Molecular Imaging, “FDA Approvals of F-18 Tracers,” snmmi.org . The 110-minute half-life of F-18 allows regional cyclotron production, expanding hospital reach. Drug developers now design tracers that both predict treatment response and guide dose selection, cutting development time and cost. Artificial-intelligence algorithms analyse tracer uptake to monitor disease in real time, broadening application scope beyond nuclear medicine to continuous metabolic surveillance. These advances strengthen the stable isotope labeling market outlook for clinical settings.
Growing13C-Labelled APIs for Microdosing Regulatory Studies
Regulators now permit exploratory investigational new drug applications that use sub-therapeutic doses of carbon-13-labeled active ingredients to collect early pharmacokinetic data, shortening first-in-human timelines and lowering development costs. Drug sponsors value13C tracers because they pose no radiation risk, easing ethics-committee approvals and supporting enrollment of healthy volunteers. Liquid-chromatography–mass-spectrometry methods can detect femtomole quantities of13C compounds, enabling accurate absolute-bioavailability measurements even for low-solubility molecules. Falling synthesis costs for highly enriched13C APIs widen access beyond large pharmaceutical firms to emerging-biotech programs focused on rare diseases. Together, these factors make13C-microdosing a practical bridge between preclinical work and full clinical studies, reinforcing steady expansion of the stable isotope labeling market.
Heightened Biopharma Outsourcing to Isotope CROs in Asia
The US Biosecure Act and comparable trade policies are prompting multinational drug makers to redirect outsourcing from China toward Indian and Southeast Asian contract research and manufacturing organizations that have invested in isotope capabilities. Indian CDMOs are adding dedicated clean rooms, cryogenic distillation units, and compliant analytical labs to offer turnkey 13C and 18O projects at labor rates often 30% below Western facilities, while meeting US FDA and EU-GMP standards. Regional governments provide tax incentives for isotope production equipment, helping CROs scale enrichment and synthesis lines that were previously cost-prohibitive. Proximity to the fast-growing Asia-Pacific clinical-trial base also cuts shipping times for short-half-life tracers, reducing study delays. This geographic rebalancing expands the customer pool for Asian suppliers and supports sustained growth in the stable isotope labeling market.
Restraint Impact Analysis
Restraint | (~) % Impact on CAGR Forecast | Geographic Relevance | Impact Timeline |
---|---|---|---|
High cost & limited availability of 18O-water feedstock | -0.4% | Regions without enrichment facilities | Short term (≤ 2 years) |
Complex export-control regulations for dual-use isotopes | -0.3% | US-EU-Asia trade lanes | Medium term (2-4 years) |
Supply-chain sensitivity to enriched-uranium tails for 15N | -0.2% | Import-dependent countries | Long term (≥ 4 years) |
Analytical-grade isotope scarcity for ultra-high-res MS | -0.2% | North America, EU | Medium term (2-4 years) |
Source: Mordor Intelligence
High Cost & Limited Availability of 18O-Water Feedstock
Annual 18O-water output from the three global plants totals roughly 600 kg, well below mounting PET imaging needs. Continuous cryogenic distillation consumes large amounts of electricity, raising cost per gram and limiting producer expansion. Pharmaceutical firms developing F-18 tracers face price volatility and supply uncertainty, often building safety stock or dual-sourcing strategies. Although membrane and chemical-exchange techniques promise lower energy footprints, they remain pre-commercial. Until scalable alternatives emerge, feedstock scarcity will restrain oxygen-18 uptake in the stable isotope labeling market.
Complex Export-Control Regulations for Dual-Use Isotopes
Licensing under US 10 CFR 810 or EU dual-use rules can lengthen delivery times and add compliance costs. Smaller isotope vendors often lack the legal infrastructure to manage multi-jurisdictional filings, pushing buyers toward large suppliers. Hefty civil penalties introduced in 2024 heighten risk aversion, causing some firms to limit cross-border sales of sensitive isotopes. Delays disrupt time-critical research, prompting laboratories to hold higher inventories or redesign experiments around available isotopes. Such friction trims growth potential for the stable isotope labeling market across export-dependent segments.
Segment Analysis
By Isotope Type: Carbon-13 Dominance Faces Oxygen-18 Disruption
Carbon-13 held 42.34% of stable isotope labeling market share in 2024, reflecting its versatility in metabolic studies and protein quantification. Pharmaceutical companies value its non-radioactive nature for microdosing, while academic institutes employ 13C tracers in systems-biology models. Deuterium remains the second-largest isotope thanks to its role in metabolic clearance studies and deuterated-drug platforms. Nitrogen-15 caters to protein-structure research and plant science, whereas sulfur-34 and silicon-29 serve environmental and semiconductor niches.
Oxygen-18 is the fastest-growing tracer with a 4.12% CAGR to 2030, buoyed by PET imaging agents that enable same-day cardiac and oncologic scans. Cryogenic-distillation expansions in Europe and North America aim to ease tight supply, yet feedstock constraints keep pricing elevated. These dynamics contribute to the steady rise of oxygen-18 in the stable isotope labeling market.
Note: Segment shares of all individual segments available upon report purchase
By Compound Category: APIs Challenge Amino Acid Supremacy
Amino acids and peptides captured 38.56% of stable isotope labeling market size in 2024, serving as internal standards in proteomics workflows and as labeled building blocks for synthetic biology. Single-cell proteome quantification further increases peptide label consumption. Active pharmaceutical ingredients, however, are advancing at a 4.43% CAGR as regulators endorse microdosing and companion-diagnostic programs. Carbon-13-labeled APIs facilitate human pharmacokinetic testing without radiation concerns, making them attractive for early-phase studies.
Metabolites, lipids, nucleic acids, and solvents round out demand with applications in pathway elucidation and genomic research. Deuterated APIs, sparked by deutetrabenazine’s success, underscore the growing link between isotope labeling and drug design. These shifts signal an evolving compound mix within the stable isotope labeling market.
By Synthesis Method: Chemical Synthesis Maintains Lead Despite Green Innovation
Chemical synthesis dominates due to well-established routes that deliver high enrichment and regulatory-grade purity. Producers scale batch sizes and control impurity profiles, supporting pharmaceutical compliance. Nonetheless, high energy use and hazardous reagents prompt customers to seek greener options.
Fermentation and metabolic labeling integrate isotopes biologically, yielding uniformly labeled biomolecules attractive for structural studies. Enzymatic-exchange and electro-enzymatic systems pioneer lower-energy pathways and reduced waste streams. Pilot plants in Europe demonstrate 20% lower energy demand than conventional synthesis. If cost parity is achieved, these approaches could broaden adoption and reshape procurement strategies in the stable isotope labeling market.
By Application: Research Foundation Supports Clinical Expansion
Research activities delivered 47.45% of revenue in 2024 as universities, national labs, and pharmaceutical discovery teams leveraged tracers to parse metabolic complexity. DOE isotope-program grants fund domestic supply, ensuring steady research access. High-resolution mass-spectrometry upgrades further accelerate tracer throughput and data depth.
Clinical diagnostics is growing the quickest at a 4.73% CAGR as regulators approve isotope-labeled agents for cardiology, oncology, and neurology imaging. Hospitals increasingly adopt PET tracers with longer half-lives and wider distribution windows, lowering patient wait times. Industrial testing, environmental monitoring for PFAS, forensics, and agriculture form adjacent opportunities, each requiring certified reference standards that rely on stable isotopes to meet regulatory accuracy targets. These varied use cases sustain momentum in the stable isotope labeling market.

Note: Segment shares of all individual segments available upon report purchase
By End-User: CRO Growth Signals Industry Transformation
Pharmaceutical and biotechnology firms generated 51.25% of 2024 demand, yet their outsourcing push is reshaping buying patterns. CROs and CDMOs in India and Southeast Asia now integrate isotope synthesis, bioanalysis, and regulatory documents, offering turnkey programs. This segment is advancing at 5.04% CAGR as the US Biosecure Act shifts outsourcing away from certain Chinese suppliers.
Academic centers and medical institutions continue to rely on government and philanthropic funding for isotope studies, while diagnostic imaging networks expand PET tracer procurement. Hospitals adopting gallium-68 and fluorine-18 agents are spawning localized radiopharmacy services. Such diversification widens the end-user base for the stable isotope labeling market.
Geography Analysis
North America commanded 45.45% of revenue in 2024 owing to robust pharmaceutical R&D spending, extensive cyclotron infrastructure, and a well-defined regulatory path for isotope-based drugs. Large contract isotope suppliers provide short lead times and technical support, cementing regional leadership. Universities maintain collaborative networks that standardize tracer protocols, supporting industry uptake.
Europe supplies high-purity isotopes from Germany, France, and the United Kingdom, underpinned by strict environmental regulations that drive demand for isotope-labeled PFAS standards. EU Horizon 2025 grants fund green-chemistry synthesis pilots, aligning sustainability objectives with market growth. Regional producers also export to the Middle East and Africa, extending influence beyond domestic demand.
Asia-Pacific is the fastest-growing region at a 5.34% CAGR to 2030. India’s CDMO sector, projected to reach USD 26.73 billion by 2028, is building isotope capabilities to capture microdosing and radiopharmaceutical contracts. Japan’s instrument makers embed isotopic calibration routines into new mass-spectrometer releases, raising local quality standards. In China, government stimulus for biologics and environmental testing fuels demand despite tighter US trade scrutiny. These regional drivers continuously elevate the stable isotope labeling market trajectory.

Competitive Landscape
The market is moderately concentrated. Cambridge Isotope Laboratories, Merck KGaA, and Thermo Fisher Scientific anchor supply across isotopes, synthesis, and instrumentation. Cambridge offers more than 8,000 labeled compounds and operates enrichment facilities in the US and Europe. Merck integrates isotope reagents into analytical-consumables lines, tightening customer lock-in. Thermo Fisher’s 2025 Orbitrap Astral Zoom mass spectrometer boosts data-acquisition speed by 35%, prompting labs to purchase higher-purity isotopes that match instrument capability[2]Source: Thermo Fisher Scientific, “Orbitrap Astral Zoom Launch,” thermofisher.com .
Mid-sized specialists such as ASP Isotopes invest in enrichment plants for carbon-14 and silicon-28 in South Africa, broadening supply for semiconductor and life-science sectors. Orano Med’s industrial-scale lead-212 facility in Indiana underpins radioligand therapy pipelines. Asian entrants scale isotope CRO services, bundling synthesis with regulatory dossiers.
Competitive advantage increasingly hinges on vertical integration and regulatory expertise. Firms combining enrichment, compound synthesis, analytical hardware, and compliance support mitigate supply disruptions and capture higher margins. Niche innovators focusing on PFAS reference materials or green-chemistry methods find defensible footholds amid larger multiproduct rivals. These dynamics reinforce the stable isotope labeling market’s moderate concentration and ongoing investment cycle.
Stable Isotope Labeled Compounds Industry Leaders
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PerkinElmer Inc
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Merck KGaA
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Cambridge Isotope Laboratories, Inc.
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JSC Isotope.
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Medical Isotopes, Inc.
- *Disclaimer: Major Players sorted in no particular order

Recent Industry Developments
- June 2025: Thermo Fisher Scientific launched Orbitrap Astral Zoom and Orbitrap Excedion Pro mass spectrometers enabling 35% faster scans and 50% more multiplexing for isotope studies.
- June 2025: RayzeBio, a Bristol Myers Squibb unit, licensed OncoACP3 radiopharmaceutical from Philochem for USD 350 million upfront, targeting acid phosphatase 3 with ¹⁷⁷Lu and ²²⁵Ac payloads
- June 2025: ASP Isotopes raised USD 50 million via a 7.5 million-share offering at USD 6.65 per share to fund HALEU and specialty-isotope ventures
Global Stable Isotope Labeled Compounds Market Report Scope
As per the scope of the report, a stable isotope-labeled compound is a chemical substance in which part of the molecules are labeled with an isotope so that observations of the isotopic composition make it possible to follow the compound or its fragments through physical, chemical, or biological processes.
The Stable Isotope Labeled Compounds Market is Segmented by Type (Deuterium, Carbon-13, Oxygen-18, and Other Stable Isotopes), Application (Research and Development, Clinical Diagnostics, and Other Applications), and Geography (North America, Europe, Asia-Pacific, Middle-East and Africa, and South America). The report offers the value in USD million for the above segments. The report also covers the estimated market sizes and trends for 17 countries across major regions globally. The report offers the value in USD million for the above segments.
By Isotope Type (Value) | Deuterium | ||
Carbon-13 | |||
Nitrogen-15 | |||
Oxygen-18 | |||
Others | |||
By Compound Category (Value) | Amino Acids & Peptides | ||
Metabolites & Lipids | |||
Active Pharmaceutical Ingredients | |||
Nucleic Acids | |||
Solvents & Reagents | |||
By Synthesis Method (Value) | Chemical Synthesis | ||
Fermentation & Metabolic Labelling | |||
Enzymatic / Exchange | |||
By Application (Value) | Research (Proteomics, Metabolomics, Flux Analysis) | ||
Clinical Diagnostics | |||
Industrial & Environmental Testing | |||
Others (Forensic, Agricultural) | |||
By End-User (Value) | Pharmaceutical & Biotechnology Companies | ||
Academic & Research Institutes | |||
Hospitals & Diagnostic Centers | |||
Contract Research & Manufacturing Organisations | |||
By Geography (Value) | North America | United States | |
Canada | |||
Mexico | |||
Europe | Germany | ||
United Kingdom | |||
France | |||
Italy | |||
Spain | |||
Rest of Europe | |||
Asia-Pacific | China | ||
India | |||
Japan | |||
South Korea | |||
Australia | |||
Rest of Asia-Pacific | |||
South America | Brazil | ||
Argentina | |||
Rest of South America | |||
Middle East and Africa | GCC | ||
South Africa | |||
Rest of Middle East and Africa |
Deuterium |
Carbon-13 |
Nitrogen-15 |
Oxygen-18 |
Others |
Amino Acids & Peptides |
Metabolites & Lipids |
Active Pharmaceutical Ingredients |
Nucleic Acids |
Solvents & Reagents |
Chemical Synthesis |
Fermentation & Metabolic Labelling |
Enzymatic / Exchange |
Research (Proteomics, Metabolomics, Flux Analysis) |
Clinical Diagnostics |
Industrial & Environmental Testing |
Others (Forensic, Agricultural) |
Pharmaceutical & Biotechnology Companies |
Academic & Research Institutes |
Hospitals & Diagnostic Centers |
Contract Research & Manufacturing Organisations |
North America | United States |
Canada | |
Mexico | |
Europe | Germany |
United Kingdom | |
France | |
Italy | |
Spain | |
Rest of Europe | |
Asia-Pacific | China |
India | |
Japan | |
South Korea | |
Australia | |
Rest of Asia-Pacific | |
South America | Brazil |
Argentina | |
Rest of South America | |
Middle East and Africa | GCC |
South Africa | |
Rest of Middle East and Africa |
Key Questions Answered in the Report
What was the stable isotope labeling market size in 2025?
The market generated USD 317.70 million in revenue during 2024.
How fast will the stable isotope labeling market grow through 2030?
It is expected to rise at a 3.05% CAGR, reaching USD 366.67 million by 2030.
Which isotope type holds the largest share?
Carbon-13 commanded 42.34% of revenue in 2024.
Why is oxygen-18 demand accelerating?
FDA-approved F-18 radiopharmaceuticals for PET imaging are driving a 4.12% CAGR in the oxygen-18 segment.
Which end-user segment is expanding the quickest?
Contract research and manufacturing organizations are growing at a 5.04% CAGR as biopharma outsourcing intensifies.
Page last updated on: July 9, 2025