Methyl-d3-magnesium iodide solution
Methyl-d3-magnesium iodide solution (CAS: 41251-37-0, CD3MgI) is a deuterated Grignard reagent supplied by Tech Serve Solutions. This organometallic compound is prepared in diethyl ether at a 1.0 M concentration. Its key feature is the isotopic substitution with deuterium, making it valuable for mechanistic studies and tracer experiments in organic synthesis where tracking the methyl group is essential.
- IUPAC
- Trideutero-methylmagnesium iodide
- Synonyms
- Trideutero-methylmagnesium iodide

Mechanistic Studies in Organic Synthesis
The deuterium labelling in methyl-d3-magnesium iodide allows chemists to trace the fate of the methyl group during reactions. This is particularly useful in elucidating reaction mechanisms and identifying intermediates in complex transformations.
Isotopic Labelling
This reagent serves as a source of a trideuterated methyl group for incorporating deuterium into organic molecules. This is critical for NMR spectroscopy, mass spectrometry, and other analytical techniques used in research and development.
Synthesis of Deuterated Compounds
Utilise methyl-d3-magnesium iodide for the preparation of specifically deuterated organic compounds. These labelled molecules are indispensable tools in pharmaceutical research and materials science for understanding molecular behaviour.
| Molecular weight | 169.26 |
|---|---|
| Linear formula | CD3MgI |
| Density | 0.871 g/mL at 25 °C |
| Concentration | 1.0 M in diethyl ether |



Hazard statements
- H225Highly flammable liquid and vapour
- H260In contact with water releases flammable gases
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
- H336May cause drowsiness or dizziness
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P223Do not allow contact with water
- P231Handle under inert gas
- P261Avoid breathing dust, fume, gas or vapours
- P370In case of fire
- P422
| Flash point | -40 °C / -40 °F |
|---|---|
| Transport (UN / ADR) | UN 3399 4.3/PG 1 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 11-14/15-19-22-34-67 |
| Safety statements (S) | 16-26-36/37/39-43-45 |
| Supplemental hazards | May form explosive peroxides. |
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+3 |
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 Methyl-d3-magnesium iodide solution used for?
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Methyl-d3-magnesium iodide solution is used in organic synthesis for mechanistic studies, isotopic labelling, and the preparation of specifically deuterated organic compounds due to its trideuterated methyl group.
What are the CAS number and formula for Methyl-d3-magnesium iodide solution?
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The CAS number is 41251-37-0, and the chemical formula is CD3MgI.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl-d3-magnesium iodide solution with an isotopic purity of 99 atom % D. The concentration is 1.0 M in diethyl ether. It is supplied as a reagent grade; TSS does not represent this product as USP, BP, or EP grade.
How should Methyl-d3-magnesium iodide solution be handled and stored?
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This compound is highly flammable (flash point -40 °C) and reacts violently with water, releasing flammable gas. It causes severe skin burns and eye damage. Handle under an inert atmosphere, away from ignition sources and water. Store in a cool, dry, well-ventilated area. May form explosive peroxides.
Is Methyl-d3-magnesium iodide solution shipped internationally?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including Methyl-d3-magnesium iodide solution, adhering to all necessary international shipping regulations for hazardous materials.
How can I request a quote or sample for Methyl-d3-magnesium iodide solution?
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To request a quote or a sample of Methyl-d3-magnesium iodide solution, please contact the Tech Serve Solutions sales team via our website or direct inquiry channels.
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