bis(pentamethylcyclopentadienyl)magnesium

双(五甲基环戊二烯)镁

Also known as: bis(1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl)magnesium, decamethylmagnesocene, Magnesium, bis(1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl)-, bis(pentamethylcyclopentadienyl)magnesium(II), Bis(pentamethylcyclopentadienyl)magnesium, elec. gr. (99.999%-Mg) PURATREM

bis(pentamethylcyclopentadienyl)magnesium (CAS 74507-64-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H30Mg and a molecular weight of 294.75700 g/mol. It is also known as bis(1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl)magnesium, decamethylmagnesocene and Magnesium, bis(1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl)-. Key property: a melting point of 230ºC (dec.)(lit.). GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
74507-64-5
Jingsj CID
J-12316-3
Molecular Formula
C20H30Mg
Chinese Name
双(五甲基环戊二烯)镁
Molecular Weight
294.75700 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point230ºC (dec.)(lit.)

GHS Safety & Compliance

FlammableSignal word: Danger

Frequently Asked Questions

What is the CAS number of bis(pentamethylcyclopentadienyl)magnesium?

The CAS number of bis(pentamethylcyclopentadienyl)magnesium is 74507-64-5.

What are the molecular formula and molecular weight of bis(pentamethylcyclopentadienyl)magnesium?

bis(pentamethylcyclopentadienyl)magnesium has molecular formula C20H30Mg and molecular weight 294.75700 g/mol.

Is bis(pentamethylcyclopentadienyl)magnesium hazardous?

bis(pentamethylcyclopentadienyl)magnesium has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "bis(pentamethylcyclopentadienyl)magnesium (CAS 74507-64-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12316-3 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.