• USA Home
  • A9528 - Amphotericin B solubilized

A9528 Sigma

Amphotericin B solubilized

powder, γ-irradiated, BioXtra, suitable for cell culture

Synonym: Amphotericin B from Streptomyces sp., Fungizone



Related Categories Antibiotic powders, Antibiotics, Antibiotics A to Z, Antibiotics A-F, Antifungal,
Quality Level   PREMIUM
sterility   γ-irradiated
product line   BioXtra
form   powder
application(s)   cell culture | mammalian: suitable
suitability   suitable for cell culture
Mode of action   cell membrane | interferes
antibiotic activity spectrum   fungi
storage temp.   2-8°C



This product is a colloidal suspension of Amphotericin B, using deoxycholate as the solubilizing agent. The formulation is ~45% Amphotericin B and 35% sodium deoxycholate in sodium phosphate and sodium chloride.


Amphotericin B is a polyene antifungal antibiotic from Streptomyce sp. It has a high affinity for sterols, especially ergosterols, of both fungal and bacterial cell membranes. Normal usage in maintenance of antifungal cell cultures is 2.5 mg/L with penicillin and streptomycin used in the medium.

Biochem/physiol Actions

Amphotericin B binds to sterols, forming pores in the membrane, and causing small molecules to leak out. The product is most effective against fungi and yeast.


Amphotericin B remains active for 3 days in culture at 37°C. At -20°C, and with protection from air and light, the product remains active for 5 years.


1, 5 g in glass bottle

50, 100, 500 mg in glass bottle

Solubilized Amphotericin B is packaged in a bottomless glass bottle, with the contents inside an inserted fused cone.

Preparation Note

Amphotericin B is soluble at 19.6-20.4 mg/ml in water, at natural pH without heating, giving a yellowish clear to slightly hazy solution.
Aqueous solutions cannot be sterile filtered due to poor solubility. If reconstituted in sterile water, there is no need to filter sterilize.

It is also soluble in DMSO (30-40 mg/mL) and in dimethylformamide (2-4 mg/mL).

General description

Chemical structure: polyene

Other Notes

Keep container tightly closed in a dry and well-ventilated place. Product is sensitive to light and moisture. Keep in a dry place.

Protocols & Applications

Antibiotic Selector for application, solubility, solution stability, working concentration, and mode of action information

Price and Availability

Request a Serum Sample

LC-MS Grade Solvents and Reagents

Celebrate Pi Day!

Standard component


Product #

Add to Cart

Amphotericin B ~ 45 % SDS    
Sodium deoxycholate ~ 35 % SDS    
Sodium phosphate balance SDS    
Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
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 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.
What is the shelf life of Product A9528, Amphotericin B solubilized?
Product No. A9528 has a recommended retest date of 5 years from the initial QC release date.  This date can be found on the lot-specific Certificate of Analysis.
What is the amount of Amphotericin B in Product No. A9528?
The package size is the amount of Amphotericin B present in the vial.  If weighing the product, utilize the potency value on the lot specific Certificate of Analysis as a correction factor.
What concentration should Product A9528, Amphotericin B solubilized, be used at?
We recommend to use Product No. A9528 at 5.6 mg solid per Liter.  Cell culture tested amphotericin B solubilized preparation is approximately 45% amphotericin B, 35% sodium deoxycholate, with the balance being sodium phosphate. The amphotericin B is at least 80% amphotericin B and 3-5% amphotericin A by HPLC.  The exact amount of amphotericin B in the product can be found on the lot specific Certificate of Analysis under Potency.
  What kind of solution is the A5955 - Antibiotic Antimycotic Solution (100×), Stabilized product suspended in?
A5955 - Antibiotic Antimycotic Solution (100×), Stabilized is supsended in a sodium citrate buffer solution. Source: Israel production group
Show more questions
Protocols & Articles

Related Content

Antibiotic Selection Guide

1Application Key: CC = Callus Culture; PR = plant regeneration; EC = cotyledon, hypocotyl, or leaf disc culture; TS = transformant selection; SE = somatic embryogenesis; SSC = stem selection culture;...
Keywords: Antibiotics, Cell culture

Peer-Reviewed Papers


Related Products

related product

Product #


Add to Cart

08168 Timestrip Plus 8 °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?