• USA Home
  • 79346 - Phorbol 12-myristate 13-acetate

79346 Sigma

Phorbol 12-myristate 13-acetate

synthetic, ≥98.0% (TLC)

Synonym: 12-O-Tetradecanoylphorbol 13-acetate, 4β,9α,12β,13α,20-Pentahydroxytiglia-1,6-dien-3-one 12-tetradecanoate 13-acetate, PMA, TPA



assay   ≥98.0% (TLC)
quality   synthetic
solubility   chloroform: soluble10 mg/mL, clear, colorless to light yellow
storage temp.   −20°C


Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Biochem/physiol Actions

Potent tumor promoter; activates protein kinase C in vivo and in vitro.

Other Notes

Activates protein kinase C in vivo and in vitro at nanomolar concentrations; Highly potent tumor promotor and mitogen: active principle of croton oil. Review


1, 5, 25 mg in glass bottle

Price and Availability

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 

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
How should Product 79346, Phorbol 12-myristate 13-acetate - synthetic, be dissolved?
PMA is soluble in acetone, DMSO, ethyl acetate, ethanol and methylene chloride, but is practically insoluble in water. The solubility of 79346 has been tested in chloroform at a concentration of 10 mg/mL.  Stock solutions of 20 mM can be prepared in DMSO and diluted into aqueous buffers.
Why do I not see any solid in the bottle of Product 79346, Phorbol 12-myristate 13-acetate - synthetic?
Phorbol 12-myristate 13-acetate may be an invisible film in the bottle.
What is the difference between product 79346, Phorbol 12-myristate 13-acetate - synthetic, and molecular biology grade product P1585?
Product P1585 has been tested and found suitable for stimulation of interleukin 2 production of Jurkat cells. Product 79346 has not tested in this application.  This information can be found on the Data sheet by clicking on the following link: http://www.sigmaaldrich.com/sigma/datasheet/p1585dat.pdf
How can I store the Product 79346, Phorbol 12-myristate 13-acetate - synthetic (PMA), solution solution?  How long?
Stock solutions in DMSO can be stored protected from light as aliquots at -20°C for at least 6 months, or at 2-8°C for up to 3 months.
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.
Show more questions
Protocols & Articles


Carcinogenesis and Epigenetics

Cancer research has revealed that the classical model of carcinogenesis, a three step process consisting of initiation, promotion, and progression, is not complete. The expansion of the carcinogenesi...
Vicki Caligur
BioFiles 2008, 3.5, 18.
Keywords: Acetylations, Adhesion, Alkylations, Apoptosis, Biofiles, Cancer, Carcinogens, Cell division, Cell proliferation, Cell signaling, DNA microarrays, Drug discovery, Environmental, Epigenetics, Events, Gene expression, Genetic, Hormones, Metabolism, Methylations, Microarray Analysis, Mutagens, PAGE, Recombination, Reductions, Sequences, Transcription, Type, transformation

Related Content

Carcinogen Selector - Integumentary System - Skin

From our library of Related Content, Sigma-Aldrich presents Carcinogen Selector - Integumentary System - Skin
Keywords: Cancer, Carcinogens, Respiratory

Carcinogen Selector - Integumentary System

From our library of Related Content, Sigma-Aldrich presents Carcinogen Selector - Integumentary System
Keywords: Cancer, Carcinogens, Respiratory

Peer-Reviewed Papers


Related Products

related product

Product #


Add to Cart

92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?