Ruthenium red

Also known as: Ammoniated ruthenium oxychloride, MFCD00011479, RR, RUTHENIUM (III) CHLORIDE OXIDE, AMMONIATED, RUTHENIUM CHLORIDE OXIDE, AMMONIATE, RUTHENIUM OXYCHLORIDE AMMONIATED, RUTHENIUM RED, RUTHENIUM SALT, RUTHENIUM TETRAMMINOHYDROXYCHLOROCHLORIDE, Ruthenium Red, Ruthenium Red test solution(ChP)

Ruthenium red (CAS 11103-72-3) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula Cl6H42N14O2Ru3 and a molecular weight of 786.354 g/mol. Key properties include a melting point of >500ºC and a density of 3.11. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 11103-72-3
Jingsj CID: J-24951-1
Molecular Formula: Cl₆H₄₂N₁₄O₂Ru₃
Molecular Weight: 786.354 g/mol
Category: Inorganic Chemicals
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	>500ºC
Density	3.11
Exact Mass	785.887817
PSA	63.82000

Activity & Biological Data

Target	ICa[2]
Additional Information	[1]. Lashanda N Waller, et al. Ruthenium red staining for ultrastructural visualization of a glycoprotein layer surrounding the spore of Bacillus anthracis and Bacillus subtilis. J Microbiol Methods. 2004 Jul;58(1):23-30. [2]. Claire O Malécot, et al. Ruthenium red as an effective blocker of calcium and sodium currents in guinea-pig isolated ventricular heart cells. Br J Pharmacol. 1998 Jun; 124(3): 465–472.

Target

ICa[2]

Additional Information

[1]. Lashanda N Waller, et al. Ruthenium red staining for ultrastructural visualization of a glycoprotein layer surrounding the spore of Bacillus anthracis and Bacillus subtilis. J Microbiol Methods. 2004 Jul;58(1):23-30. [2]. Claire O Malécot, et al. Ruthenium red as an effective blocker of calcium and sodium currents in guinea-pig isolated ventricular heart cells. Br J Pharmacol. 1998 Jun; 124(3): 465–472.

Frequently Asked Questions

What is the CAS number of Ruthenium red?

The CAS number of Ruthenium red is 11103-72-3.

What are the molecular formula and molecular weight of Ruthenium red?

Ruthenium red has molecular formula Cl6H42N14O2Ru3 and molecular weight 786.354 g/mol.

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

Last updated: 11/3/2026

How to cite: Jingsj. "Ruthenium red (CAS 11103-72-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24951-1 (accessed 2026-11-06).

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