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TOX1

Sigma-Aldrich

In Vitro Toxicology Assay Kit, MTT based

Synonym(s):

mitochondrial activity assay

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About This Item

UNSPSC Code:
12352207
NACRES:
NA.84

usage

 kit sufficient for 1,000 tests

Quality Level

200

packaging

pkg of 1 kit

storage condition

dry at room temperature

λmax

570 nm

application(s)

cell analysis
detection

detection method

colorimetric

storage temp.

2-8°C

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General description

This kit is designed for determining cell number/ cell viability spectrophotometrically as a function of mitochondrial activity in living cells. The MTT method is simple, accurate and yields reproducible results. The key component is (3- [4,5- dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide) or MTT. Solutions of MTT, dissolved in medium or balanced salt solutions without phenol red, are yellowish in color. Mitochondrial dehydrogenases of viable cells cleave the tetrazolium ring, yielding purple formazan crystals which are insoluble in aqueous solutions. Absorbance of converted dye is measured at a wavelength of 570nm.

Application

In Vitro Toxicology Assay Kit, MTT based has been used to perform an (3-[4,5-dimethylthiazole-2-yl]-2,5-diphenyltetrazolium bromide) MTT assay to measure the cytotoxicity of gold nanoparticles (AuNP). It has also been used to examine cell viability in SH-SY5Y cultures in response to 6-hydroxydopamine (6-OHDA) treatment.

Biochem/physiol Actions

Conversion of MTT to a water-insoluble colored formazan derivative which is then solubilized in acidic isopropanol.

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Danger

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Flam. Liq. 2 - Muta. 2 - Skin Corr. 1 - STOT SE 3

Target Organs

Central nervous system, Respiratory system

Storage Class Code

3 - Flammable liquids

Flash Point(F)

53.6 °F

Flash Point(C)

12 °C

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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  1. 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.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. 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.

  4. 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. 

  5. Is the MTT assay quantitative?

    The MTT asay is a method to assess cell viability.  This assay is a semiquantitative assay. The assay is used to compare the viability changes in treated cells to untreated cells. The absorbance is indicative of the cell number. The higher the absorbance, the greater the number of viable cells present. Most researchers compare the absorbance of the two samples as a ratio (ABS treated cells/ABS untreated cells) to get a fold increase/decrease in cell number.   

  6. What is the difference between product CGD1, Cell Growth Determination Kit and product TOX1, In Vitro Toxicology Assay Kit?

    Product CGD1 and TOX1 are both MTT based assays. The major difference between product CGD1 and TOX1 is that TOX1 contains 10 % Triton X-100 in the solubilization solution for better lysis of the cells and solubilization of the MTT.  If there is complete cell lysis, the results obtained with both kits would be the same.  The MTT in this kit is a solution, whereas the TOX1 assay kit contains the MTT as a powder that is solubilized before use.

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

J Carmichael et al.
Cancer research, 47(4), 936-942 (1987-02-15)
Drug sensitivity assays were performed using a variation of a colorimetric [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)] assay on V79, CHO-AuxB1, CHRC5, NCI-H460, and NCI-H249 cell lines following optimization of experimental conditions for each cell line. Results from this assay were compared with
Srijayaprakash B Uppada et al.
International journal of nanomedicine, 9, 43-53 (2014-01-07)
Oligonucleotides homologous to 3'-telomere overhang (T-oligos) trigger inherent telomere-based DNA damage responses mediated by p53 and/or ATM and induce senescence or apoptosis in various cancerous cells. However, T-oligo has limited stability in vivo due to serum and intracellular nucleases. To
Anumol Shashikumar et al.
Cytotechnology, 63(5), 473-480 (2011-07-30)
This is the first report on development of a finite cell line from testicular tissues of crab, Scylla serrata. Both the explant and segregated tissues of testes yielded cells that could proliferate and grow. These cells ranged in size from
F Denizot et al.
Journal of immunological methods, 89(2), 271-277 (1986-05-22)
A convenient way to estimate the number of viable cells growing in microtitre tray wells is to use a colorimetric assay and an automatic microplate scanning spectrophotometer. One such assay, developed by Mosmann, depends on the reduction by living cells
Off-resonance plasmonic enhanced femtosecond laser optoporation and transfection of cancer cells
Baumgart J, et al.
Biomaterials, 33(7), 2345-2350 (2012)
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