Methane-d4
Methane-d4 (CAS: 558-20-3), with the molecular formula CD4 and a molecular weight of 20.07 g/mol, is a deuterated analogue of methane. This stable isotope labelled gas is primarily utilized in scientific research as an internal standard for quantitative analysis in gas chromatography and mass spectrometry, particularly in studies involving hydrocarbon metabolism and environmental monitoring. Its distinct isotopic signature allows for precise tracking and quantification in complex matrices.
Internal Standard in Analytical Chemistry
Methane-d4 serves as a reliable internal standard for gas chromatography-mass spectrometry (GC-MS) and other spectroscopic techniques. Its near-identical chemical properties to methane but distinct mass allow for accurate quantification of methane in various samples without interfering with the native analyte.
Isotopic Labelling Studies
In research, this deuterated compound is used to trace metabolic pathways of methane or related hydrocarbons. Its incorporation into biological or environmental systems allows scientists to follow the fate and transformation of carbon-containing compounds.
NMR Spectroscopy
Deuterated compounds like Methane-d4 are essential in Nuclear Magnetic Resonance (NMR) spectroscopy. While less common for methane itself compared to other deuterated solvents, it can be used in specific applications where a deuterated hydrocarbon standard is required for calibration or solvent suppression.
| Molecular weight | 20.07 |
|---|---|
| Linear formula | CD4 |
| Boiling point | −161 °C(lit.) |
| Vapour density | 0.55 (vs air) |
| Melting point | −183 °C(lit.) |
Hazard statements
- H220Extremely flammable gas
- H280Contains gas under pressure; may explode if heated
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P410Protect from sunlight
| Flash point | -18 °C / -.4 °F |
|---|---|
| Transport (UN / ADR) | UN 1971 2.1 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F+ |
| Risk statements (R) | 12 |
| Safety statements (S) | 9-16-33 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Isotopic Purity | 99 atom % D |
|---|---|
| Mass Shift | M+4 |
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 Methane-d4 used for?
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Methane-d4 (CD4) is primarily used as an internal standard in analytical techniques like gas chromatography-mass spectrometry (GC-MS) for the accurate quantification of methane. It is also employed in isotopic labelling studies to trace metabolic pathways or the environmental fate of hydrocarbons.
What are the CAS number and formula for Methane-d4?
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The CAS number for Methane-d4 is 558-20-3, and its molecular formula is CD4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methane-d4 with an isotopic purity of 99 atom % D. This product is supplied for research and laboratory use, and TSS does not represent it as USP, BP, or EP grade.
How is Methane-d4 handled and stored?
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Methane-d4 is an extremely flammable gas with potential pressure hazards. It must be handled with appropriate safety precautions, including working in well-ventilated areas and using explosion-proof equipment. Store cylinders upright in a cool, well-ventilated area away from ignition sources, heat, and incompatible materials. Always follow the precautionary statements P210 (Keep away from heat/sparks/open flames/hot surfaces. No smoking) and P410 + P403 (Protect from sunlight. Store in a well-ventilated place).
Is Methane-d4 shipped internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Methane-d4, and can arrange for international shipment.
How can I request a sample or quote for Methane-d4?
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To request a sample or a quote for Methane-d4, please contact our sales team through the website or by calling our office. Provide the product name (Methane-d4) and CAS number (558-20-3) in your request.
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