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Magnesium methoxide

Also known as: Dimethoxymagnesium, Magnesium dimethoxide, Magnesium methylate, Methanol, magnesium salt (2:1), Magnesium methanolate, Bis(methoxy)magnesium, Magnesium bismethoxide, Magnesium methoxide 7-8% in methanol, Magnesium methoxide solution

Magnesium methoxide (CAS 109-88-6) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C2H6MgO2 and a molecular weight of 86.37280 g/mol. Key properties include a boiling point of 48.1ºC at 760mmHg, a density of 0.816 g/mL at 25 °C and a flash point of 7.8 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
109-88-6
Jingsj CID
J-1990546-4
Molecular Formula
C2H6MgO2
Molecular Weight
86.37280 g/mol
Category
Solvents
Last updated
11/2/2026
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Physicochemical Properties

Boiling Point48.1ºC at 760mmHg
Density0.816 g/mL at 25 °C
Flash Point7.8 °C
Exact Mass86.02180
PSA46.12000
LogP0.09340
Vapor Pressure265mmHg at 25°C
Refractive Indexn20/D 1.3381

GHS Safety & Compliance

Flammable / Corrosion / Acute Toxicity / Health HazardSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H314 — Causes severe skin burns and eye damage
  • H370 — Causes damage to organs

Frequently Asked Questions

What is the CAS number of Magnesium methoxide?

The CAS number of Magnesium methoxide is 109-88-6.

What are the molecular formula and molecular weight of Magnesium methoxide?

Magnesium methoxide has molecular formula C2H6MgO2 and molecular weight 86.37280 g/mol.

Is Magnesium methoxide hazardous?

Magnesium methoxide has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Magnesium methoxide (CAS 109-88-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990546-4 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.