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L9879 Sigma

Lycopene

≥90%, from tomato

Synonym: ψ,ψ-Carotene, 2,6,10,14,19,23,27,31-Octamethyl-dotriaconta-2,6,8,10,12,14,16,18,20,22,24,26,30-tridecaene

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Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Biochem/physiol Actions

Antioxidant micronutrient of tomatoes associated with decreased risk for cancer and cardiovascular disease. Enhances gap juction communication between cells via upregulation of connexin 43 and reduces proliferation of cancer cells in culture. Inhibits cholesterol synthesis and enhances low-density lipoprotein degradation.

Packaging

1, 5, 10 mg in ampule

sealed ampule

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. L9879.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Price and Availability


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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

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
Is Product L9879, Lycopene, of the Trans or Cis stereoforms?
Based on the CAS number search in ACS database and The Merck Index, this lycopene is an all-trans compound. The Merck Index, 12th ed., Entry# 5650.
What is the method of preparation of Product L9879, Lycopene?
Details of the method of preparation are considered proprietary information. The last solvent that the lycopene comes into contact with is methanol. However, the material is dried extensively, so little, if any, methanol should be present.
How can Product L9879, Lycopene, be dissolved?
Lycopene dissolves in carbon disulfide (1 g/50 mL), boiling ether (1 g/3 L), boiling petroleum ether (1 g/12 L) or hexane at 0 °C (1 g/14 L). Lycopene is almost insoluble in methanol or ethanol, but is soluble in chloroform or benzene.
What is the solution stability of Product L9879, Lycopene?
A solution prepared under argon, protected from light and stored at -20 °C is stable for up to 48 hours.  It is recommended to prepare solutions fresh each time and to prepare immediately before use.
How can I assess the condition of Product L9879, Lycopene, from its appearance?
We advise against using the product if it becomes speckled or has a "salt and pepper" appearance. An acceptable range of colors is from dark purple to reddish brown to brown.
What is the extinction coefficient of Lycopene, Product L9879?
Extinction Coefficients: For samples dissolved in petroleum ether, E1% = 3450 (at 472 nm), 2250 (at 446 nm) and 3150 (at 505 nm).
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. 
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles

Articles

Cholesterol Biosynthesis Regulation

The amount of cholesterol that is synthesized in the liver is tightly regulated by dietary cholesterol levels. When dietary intake of cholesterol is high, synthesis is decreased and when dietary inta...
BioFiles 2007, 2.7, 6.
Keywords: Gene expression, Transcription

Dietary Antioxidants

Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.1 During the oxi...
Biofiles Volume 2 Article 2
Keywords: Adhesion, Anti-inflammatory agents, Applications, Cancer, Cardiovascular, Catalysis, Diabetes, Diseases, Gene expression, Metabolism, Neurodegenerative Diseases, Peroxidations, Phosphorylations, Prebiotics, Probiotics, Reductions, Transcription, Transduction, Vitamins

Retinoic Acid and Gene Expression

All-trans retinoic acid (RA, ATRA) is a pleiotropic activation factor that regulates genes associated with normal vertebrate cellular processes such as cell differentiation, cell proliferation, apopt...
BioFiles 2008, 3.9, 12.
Keywords: Apoptosis, Cancer, Cell proliferation, Cellular processes, Chromatin immunoprecipitation, Condensations, Degradations, Diseases, Gene expression, Hormones, Immunoprecipitation, Ligands, Metabolism, Oxidations, Phosphorylations, Polymerase chain reaction, Sequences, Teratogens, Transcription, Type, Ubiquitinations, Usage, Vitamins

Peer-Reviewed Papers
15

References

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