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  • 76886 - Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex

76886 Sigma-Aldrich

Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex

for fluorescence

Synonym: Ru(ddp)

  • CAS Number 36309-88-3

  • Empirical Formula (Hill Notation) C72H48Cl2N6Ru

  • Molecular Weight 1169.17

  •  MDL number MFCD03095387

  •  PubChem Substance ID 329767411



Frequently Asked Questions

Frequently Asked Questions are available for this Product.


Bottomless glass bottle. Contents are inside inserted fused cone.


Ruthenium-tris(4,7-diphenyl-1,10-phenanthroline) dichloride (Ru(dpp)) has been widely used as a probe for luminescent detection and quantitation of oxygen. The fluorescence of the dye (abs. λmax 455 nm, luminescence λmax 613 nm) is strongly reduced by molecular oxygen due to dynamic quenching, making Ru(dpp) a viable oxygen probe based on either measurement of intensity or decay time. Ru(ddp) has been used for fiber optic sensors, studies on oxygen in skin and skin tumors, measurement of oxygen flux through skin, and for oxygen imaging.

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Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
What is the appearance of Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886, supposed to be?
Product No. 76886 is an orange solid. For more information on this product, check out the following link: http://www.sigmaaldrich.com/fluka/product%20information%20sheet/76886_data_sheet_101kb.pdf
What are some applications for Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886?
This product is widely used 1) as a probe for luminescent detection, 2) for quantitation of oxygen using (fiber) optic sensors[1,2], 3) studies on oxygen in skin [3,4]. For the related references, please check out from the link of http://www.sigmaaldrich.com/catalog/search/ProductDetail/FLUKA/76886
In what solvents is Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886, soluble?
It is soluble in DMF, chloroform, ethanol, methanol and toluene (moderately).
Do you have any information on the optical properties of the dye commonly known as Ru(dpp), Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886?
We have the following information regarding solutions of this dye in toluene. The absorbance (excitation) maximum is at 455 nm, with a fluorescence (emission) maximum of 613 nm. The extinction coefficient of the visible maximum (~460 nm) is 30,000 M-1 cm-1.
What is the O2 detection/determination limit of Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886?
Unfortunately, we currently do not have such information available. Generally, this sensor dye's oxygen detection is based on quenching of its luminescence by oxygen. Its detection limit for oxygen in solution will be mainly depending on the intensity differences the used fluorimeter can detect.
What can be used with Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886, for the fabrication of O2 sensor layers?
According to what we have found in the literature, asilicone polymer and polystyrene have both been used for sensor fabrication. See Klimant, I. and O.S. Wolfbeis, Analytical Chemistry, 67, 3160-3166 (1995) and references cited therein.
What are the recommended storage conditions for Tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(II) dichloride complex (Rubidium-tris), Product 76886?
We recommend that this product be stored under an inert gas, such as argon. Avoid light, because it is light-sensitive.
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
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