Carbon-13C monoxide
Tech Serve Solutions presents Carbon-13C monoxide (CAS: 1641-69-6), a stable isotope labelled gas with the formula 13CO and a molecular weight of 29.00 g/mol. This specialty gas serves as a crucial building block in the synthesis of 13C-labelled compounds, finding utility in astrophysical research and radiation chemistry. Its precise isotopic enrichment makes it invaluable for studies requiring tracer molecules.
- IUPAC
- 13C Labeled carbon monoxide

Isotopically Labelled Synthesis
Carbon-13C monoxide is a fundamental precursor for synthesising complex organic molecules and pharmaceutical intermediates enriched with the stable carbon-13 isotope. This enables advanced analytical techniques and metabolic studies.
Astrophysical Research
The compound is employed in astrophysical studies to investigate the chemical composition and processes occurring in interstellar clouds and other celestial environments.
Radiation Chemistry
Its unique isotopic composition makes it suitable for specific applications within radiation chemistry research, particularly in studies involving isotopic effects or tracing reaction pathways.
| Molecular weight | 29.00 |
|---|---|
| Linear formula | 13CO |
| Density | 1.25 g/mL at 25 °C(lit.) |
| Application | Important basic building block for 13C labeled compounds. Also employed in astrophysical science and radiation chemistry.1,2 |
| Melting point | −207 °C(lit.) |




Hazard statements
- H220Extremely flammable gas
- H280Contains gas under pressure; may explode if heated
- H331Toxic if inhaled
- H360D
- H372Causes damage to organs through prolonged exposure
Precautionary statements
- P201Obtain special instructions before use
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P311Call a POISON CENTER or doctor
- P410Protect from sunlight
| Transport (UN / ADR) | UN 1016 2.1(2.3) |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F+,T |
| Risk statements (R) | 61-12-23-48/23 |
| Safety statements (S) | 53-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | mol wt 28.99 by atom % calculation |
|---|---|
| Isotopic Purity | 99 atom % 13C<5 atom % 18O |
| Mass Shift | M+1 |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Carbon-13C monoxide used for?
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Carbon-13C monoxide (CAS: 1641-69-6) is primarily used as an essential building block for synthesising 13C-labelled compounds, and it finds applications in astrophysical science and radiation chemistry.
What are the CAS number and chemical formula for Carbon-13C monoxide?
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The CAS number for Carbon-13C monoxide is 1641-69-6, and its chemical formula is 13CO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Carbon-13C monoxide with a minimum isotopic purity of 99 atom % 13C and less than 5 atom % 18O. We do not represent this product as USP, BP, or EP grade.
How is Carbon-13C monoxide supplied and shipped?
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Carbon-13C monoxide is supplied as a gas under pressure and adheres to strict UN 1016 2.1(2.3) shipping regulations. TSS ensures compliance for global export.
What are the main hazards associated with Carbon-13C monoxide?
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Carbon-13C monoxide is an extremely flammable gas (H220) and an asphyxiant under pressure (H280). It is toxic if inhaled (H331) and may cause reproductive harm (H360D), leading to organ damage through prolonged or repeated exposure (H372).
How can I request a quote or sample for Carbon-13C monoxide?
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To request a quote or sample for Carbon-13C monoxide, please contact our sales department through the TSS website or by phone. Please reference CAS number 1641-69-6.
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