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Dihydrorhodamine 123 (CAS 109244-58-8)

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Alternate Names:
Dihydrorhodamine 123 is also known as DHR 123, and 2-(3,6-Diamino-9H-xanthene-9-yl)-benzoic acid methyl ester
Application:
Dihydrorhodamine 123 is a fluorescent probe commonly used for determination of peroxynitrite & other ROSs
CAS Number:
109244-58-8
Molecular Weight:
346.38
Molecular Formula:
C21H18N2O3
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Dihydrorhodamine 123 (CAS: 109244-58-8) is a chemical compound that has found significant utility in scientific research due to its distinctive characteristics and diverse applications. Primarily utilized as a fluorescent probe, dihydrorhodamine 123 is employed to investigate the presence and activity of reactive oxygen species (ROS) within biological systems. Its mechanism of action involves undergoing oxidation by ROS, resulting in the formation of a highly fluorescent compound known as rhodamine 123. This fluorescence enables researchers to visualize and quantify ROS levels in various experimental samples, providing valuable insights into oxidative stress and redox signaling. In research settings, dihydrorhodamine 123 has been extensively employed to explore the involvement of ROS in a wide range of biological processes. It serves as a valuable tool in studying oxidative damage, cellular aging, and the role of ROS in various diseases. By measuring the intensity of rhodamine 123 fluorescence, scientists can assess the levels of ROS generation and evaluate their impact on cellular function and overall physiological homeostasis. Furthermore, dihydrorhodamine 123′s versatility extends beyond fluorescence-based studies. It has also been utilized in flow cytometry and microplate-based assays to quantify ROS levels in a high-throughput manner, enabling large-scale screening and analysis of oxidative stress in diverse experimental systems.


Dihydrorhodamine 123 (CAS 109244-58-8) References

  1. Dihydrorhodamine 123 is superior to 2,7-dichlorodihydrofluorescein diacetate and dihydrorhodamine 6G in detecting intracellular hydrogen peroxide in tumor cells.  |  Qin, Y., et al. 2008. Cell Biol Int. 32: 224-8. PMID: 17920943
  2. A 700 nm LED Light Activated Ru(II) Complex Destroys Tumor Cytoskeleton via Photosensitization and Photocatalysis.  |  Dao, A., et al. 2024. Adv Healthc Mater. e2400956. PMID: 38635863
  3. Resveratrol prevents the release of neutrophil extracellular traps (NETs) by controlling hydrogen peroxide levels and nuclear elastase migration.  |  de Mattos, TRF., et al. 2024. Sci Rep. 14: 9107. PMID: 38643283
  4. Donor-Acceptor Modulating of Ionic AIE Photosensitizers for Enhanced ROS Generation and NIR-II Emission.  |  Yang, X., et al. 2024. Adv Mater. e2402182. PMID: 38663035
  5. Photosensitive AIEgens sensitize bacteria to oxidative damage and modulate the inflammatory responses of macrophages to salvage the photodynamic therapy against MRSA.  |  Wu, Y., et al. 2024. Biomaterials. 309: 122583. PMID: 38692148
  6. Metal-Organic Framework-Based Nanovaccine for Relieving Immunosuppressive Tumors via Hindering Efferocytosis of Macrophages and Promoting Pyroptosis and Cuproptosis of Cancer Cells.  |  Liu, Y., et al. 2024. ACS Nano. 18: 12386-12400. PMID: 38699808
  7. Inhibition of succinate:ubiquinone reductase and decrease of ubiquinol in nephrotoxic cysteine S-conjugate-induced oxidative cell injury.  |  van de Water, B., et al. 1995. Mol Pharmacol. 48: 928-37. PMID: 7476924
  8. Counterprotective effect of erythrocytes in experimental bacterial peritonitis is due to scavenging of nitric oxide and reactive oxygen intermediates.  |  Kim, YM., et al. 1996. Infect Immun. 64: 3074-80. PMID: 8757836
  9. Role of reactive oxygen intermediates in TCR-induced death of T cell blasts and hybridomas.  |  Williams, MS. and Henkart, PA. 1996. J Immunol. 157: 2395-402. PMID: 8805638
  10. Dichlorodihydrofluorescein and dihydrorhodamine 123 are sensitive indicators of peroxynitrite in vitro: implications for intracellular measurement of reactive nitrogen and oxygen species.  |  Crow, JP. 1997. Nitric Oxide. 1: 145-57. PMID: 9701053

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Dihydrorhodamine 123, 10 mg

sc-203027
10 mg
$172.00

i'd like to know i add the DHR123 stock (1000* in DMSO) into PBS, it shows strong fluorescence intensity under plate reader, is it normal? thank you!

Asked by: Leostudy
Thank you for your question. We do not have data showing fluorescence under those circumstances. Please contact our technical service team directly for information.
Answered by: Tech Support Europe
Date published: 2024-04-30

I would like to know if the powdered product should also be stored at -20° C or just freeze the solubilized form (in DMSO for example). In addition, when preparing the solution with DMSO the color is pink, is it normal? Thank you!

Asked by: two2igm05
Thank you for your question. Dihydrorhodamine 123, sc-203027, in solid form should be stored at -20ºC as well and the pinkish solution color is normal.
Answered by: Chemical Support 4
Date published: 2017-03-08

Bonjour, je voudrais savoir si le produit en poudre doit être également stocké à -20°C ou il faut juste congeler la forme solubilisée ( dans le DMSO par exemple). En outre, en préparant la solution avec le DMSO la couleur est rose, est-t-il normal? Merci

Asked by: ViolaM
Merci pour votre question. Le produit sous forme solide doit être stocké à -20°C. Après solubilisation, il est normal d'obtenir une solution de couleur rose. Thank you for your inquiry. Solid form should be stored at -20ºC. Pinkish solution color is normal.
Answered by: Technical Support Europe
Date published: 2017-01-26

Is this the salt form? Is this the reduced or oxidized form?

Asked by: chemicalsmg
Thank you for your question. The form that we provide is the reduced form. When used in vitro for staining in cells, ROS (reactive oxygen species) will oxidize the product into rhodamine 123 (sc-208306) which fluoresces under the following conditions: λex: 488 nm λem: 515 nm To confirm: this product is not the salt form. Please contact Technical Service if you have further questions concerning this product.
Answered by: Tech Service 9
Date published: 2016-12-22
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Rated 5 out of 5 by from Various publications cite the use of DihydrorhodamineVarious publications cite the use of Dihydrorhodamine 123 (DHR 123), a cell-permeable fluorescent probe, for the detection of reactive oxygen species such as peroxide and peroxynitrite. It is not fluorescent until oxidized by ROS to the highly fluorescent product Rhodamine 123 (sc-208306). Neither NO, superoxide, nor hydrogen peroxide alone appear to oxidize DHR, rather, these ROS are thought to combine with other cellular components such as cytochrome c oxidase or Fe2+ in order to oxidize DHR 123 to its fluorescent derivative Rhodamine 123. -SCBT Publication Review
Date published: 2015-01-30
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Dihydrorhodamine 123 is rated 5.0 out of 5 by 1.
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