Resazurin sodium salt |
Catalog No.GC16113 |
Resazurin sodium salt (Diazoresorcinol sodium) is commonly used to measure bacterial and eukaryotic cell viability through its reduction to the fluorescent product resorufin.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 62758-13-8
Sample solution is provided at 25 µL, 10mM.
Quality Control & SDS
- View current batch:
- Purity: >94.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Cell experiment: |
F. tularensis is cultured in TSBc supplemented with 44 μM Resazurin sodium salt at 37°C with shaking for 24 h. At select time points, a Spectronic 200 Spectrophotometer is used to measure the absorbance at 600 nm and 570 nm to detect the presence of Resazurin sodium salt and resorufin, respectively. The ratio of these two optical densities is used to evaluate reduction of Resazurin sodium salt to resorufin over time[1]. |
References: [1]. Schmitt DM, et al. The use of resazurin as a novel antimicrobial agent against Francisella tularensis. Front Cell Infect Microbiol. 2013 Dec 6;3:93. |
The non-fluorescent resazurin has been used as a fluorogenic oxidation-reduction indicator in various cells by flow cytometry, fluorescence microscopy and high-throughput screening. Its red-fluorescent product, resorufin, has absorption/emission maxima ~575/585 nm.
In vitro: Resazurin has been applied as a simple and versatile way to measure cell proliferation and cytotoxicity. Although resazurin presented plenty of advantages over other cytotoxicity or proliferation tests, everal drawbacks to the routine use of resazurin were also observed. Previoius studies showed accumulation of the fluorescent product of resazurin in the medium which could result in an overestimation of cell population. Moreover, the extensive reduction of resazurin by metabolically active cells would lead to a final nonfluorescent product, and thus an underestimation of cellular activity [1]. In order to evaluate the effect of resazurin over longer incubation times, MCF7, MCF10A, 3T3-L1 and D1 cell lines were tested. Results showed that MCF7, 3T3-L1, and D1 cells cultured for 8 days with 20% resazurin had significantly less cell survivability. Moreover, levels of metabolic activity, DNA concentration, as well as glucose consumption of the cell lines in medium with 20% resazurin were significantly lower. Data also showed that the toxicities were more pronounced in the cancer cell lines than in the noncancerous cells [2].
References:
[1] O'Brien J,Wilson I,Orton T,Pognan F. Investigation of the Alamar Blue (resazurin) fluorescent dye for the assessment of mammalian cell cytotoxicity. Eur J Biochem.2000 Sep;267(17):5421-6.
[2] Pace RT,Burg KJ. Toxic effects of resazurin on cell cultures. Cytotechnology.2015 Jan;67(1):13-7.
Cas No. | 62758-13-8 | SDF | |
Chemical Name | sodium 7-oxido-3-oxo-3H-phenoxazine 10-oxide | ||
Canonical SMILES | O=C1C=C2OC3=CC([O-])=CC=C3[N+]([O-])=C2C=C1.[Na+] | ||
Formula | C12H6NNaO4 | M.Wt | 251.17 |
Solubility | ≥ 25.1mg/mL in DMSO | Storage | Store at -20°C |
General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. |
Prepare stock solution | |||
1 mg | 5 mg | 10 mg | |
1 mM | 3.9814 mL | 19.9068 mL | 39.8137 mL |
5 mM | 0.7963 mL | 3.9814 mL | 7.9627 mL |
10 mM | 0.3981 mL | 1.9907 mL | 3.9814 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)
Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
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