Bis(pentamethylcyclopentadienyl)ruthenium(II)

Also known as: Decamethylruthenocene, Bis(pentamethylcyclopentadienyl)ruthenium, Bis(η5-pentamethylcyclopentadienyl)ruthenium, Ruthenocene, decamethyl-

Bis(pentamethylcyclopentadienyl)ruthenium(II) (CAS 84821-53-4) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C20H30Ru and a molecular weight of 371.52200 g/mol. Key property: a melting point of 260ºC (dec.)(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 84821-53-4
Jingsj CID: J-12090-1
Molecular Formula: C₂₀H₃₀Ru
Molecular Weight: 371.52200 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point	260ºC (dec.)(lit.)
Exact Mass	372.13900
LogP	5.94400

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of Bis(pentamethylcyclopentadienyl)ruthenium(II)?

The CAS number of Bis(pentamethylcyclopentadienyl)ruthenium(II) is 84821-53-4.

What are the molecular formula and molecular weight of Bis(pentamethylcyclopentadienyl)ruthenium(II)?

Bis(pentamethylcyclopentadienyl)ruthenium(II) has molecular formula C20H30Ru and molecular weight 371.52200 g/mol.

Is Bis(pentamethylcyclopentadienyl)ruthenium(II) hazardous?

Bis(pentamethylcyclopentadienyl)ruthenium(II) has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Bis(pentamethylcyclopentadienyl)ruthenium(II)?

For Bis(pentamethylcyclopentadienyl)ruthenium(II), Upstream Products: Pentamethylcyclopentadiene, ruthenium chloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Bis(pentamethylcyclopentadienyl)ruthenium(II) (CAS 84821-53-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-12090-1 (accessed 2026-11-09).

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