Methylmagnesium chloride
Also known as: Methylmagnesium chloride, chloromethyl-magnesium, chlorido(methyl)magnesium, (chloromagnesio)methane, magnesium, carbanide, chloride
Methylmagnesium chloride (CAS 676-58-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula CH3ClMg and a molecular weight of 74.79250 g/mol. Key properties include a boiling point of 66 °C, a density of 1.013 g/mL at 25 °C and a flash point of -18.3 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H260 and H302 — Harmful if swallowed. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 676-58-4
- Jingsj CID
- J-1354122-5
- Molecular Formula
- CH3ClMg
- Molecular Weight
- 74.79250 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 66 °C |
|---|---|
| Density | 1.013 g/mL at 25 °C |
| Flash Point | -18.3 °C |
| Exact Mass | 73.97740 |
| LogP | 1.27330 |
| Additional Property | reacts |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H260
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
- H335 — May cause respiratory irritation
- H351 — Suspected of causing cancer
Frequently Asked Questions
What is the CAS number of Methylmagnesium chloride?
The CAS number of Methylmagnesium chloride is 676-58-4.
What are the molecular formula and molecular weight of Methylmagnesium chloride?
Methylmagnesium chloride has molecular formula CH3ClMg and molecular weight 74.79250 g/mol.
Is Methylmagnesium chloride hazardous?
Methylmagnesium chloride has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H260; H302 — Harmful if swallowed.
What are the upstream and downstream products of Methylmagnesium chloride?
For Methylmagnesium chloride, Upstream Products: Chloromethane; Downstream Products: 5-methyl-4-nitro-1H-indole, 4-(4-isopropylphenyl)butan-2-one, tert-Butyl 3-hydroxy-3-methylazetidine-1-carboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methylmagnesium chloride (CAS 676-58-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354122-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.