Phosgene-13C
Phosgene-13C (CAS 53120-07-3) is a stable isotope-labelled analogue of phosgene, with the chemical formula 13COCl2 and a molecular weight of 99.91 g/mol. This compound is supplied as a 1.0 M solution in toluene and is crucial for isotopic tracer studies and mechanistic investigations in organic synthesis, particularly in areas requiring precise tracking of carbon atoms.

Isotopic Labelling in Organic Synthesis
Phosgene-13C serves as a valuable reagent for introducing a 13C-labelled carbonyl group into organic molecules. This is essential for reaction mechanism studies and metabolic pathway tracing in biochemical research.
Chemical Synthesis Reagent
As a derivative of phosgene, it can be employed in the synthesis of various organic compounds, including carbonates, ureas, and isocyanates, with the added benefit of isotopic enrichment for analytical purposes.
Mechanistic Studies
The use of 13C allows researchers to track the fate of the carbonyl carbon atom through complex reaction pathways, providing unambiguous evidence for proposed mechanisms in chemical transformations.
| Molecular weight | 99.91 |
|---|---|
| Linear formula | 13COCl2 |
| Concentration | 1.0 M in toluene |
| Storage temperature | 2-8°C |


Hazard statements
- H314Causes severe skin burns and eye damage
- H330Fatal if inhaled
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P284Wear respiratory protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Transport (UN / ADR) | UN 1076 8(2.3) |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | T+ |
| Risk statements (R) | 26-34 |
| Safety statements (S) | 9-26-36/37/39-45 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | mol wt 99.90 by atom % calculation |
|---|---|
| Isotopic Purity | 99 atom % 13C |
| 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 Phosgene-13C used for?
+
Phosgene-13C is used as an isotopically labelled reagent in organic synthesis and chemical research to trace the carbonyl carbon atom in reaction mechanisms and metabolic pathways.
What is the CAS number and formula for Phosgene-13C?
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The CAS number for Phosgene-13C is 53120-07-3, and its linear formula is 13COCl2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Phosgene-13C with an isotopic purity of 99 atom % 13C, as a 1.0 M solution in toluene. We do not represent this product as USP, BP, or EP grade.
How should Phosgene-13C be handled safely?
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Phosgene-13C is a highly toxic and corrosive gas, with signal word 'Danger' and hazard statements H314 (Causes severe skin burns and eye damage) and H330 (Fatal if inhaled). Handle with extreme caution in a well-ventilated area or fume hood, using appropriate personal protective equipment, including respiratory protection.
How is Phosgene-13C packed and shipped?
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Phosgene-13C is supplied as a 1.0 M solution in toluene, packed and shipped according to relevant regulations for hazardous materials. Storage is recommended at 2-8°C.
How can I request a sample or quote for Phosgene-13C?
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To request a sample or a quote for Phosgene-13C, please contact the Tech Serve Solutions sales team via our website or by phone, providing your specific requirements.
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