AMPHOTERICIN B

Amphotericin B is a polyene antifungal that binds ergosterol, causing membrane disruption. Side effects include fever, nephrotoxicity, and electrolyte imbalance.

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Product Description


Mechanism of action

Amphotericin B binds ergosterol in fungal cell membranes, forming transmembrane pores that cause leakage of intracellular ions (K⁺, Mg²⁺) and metabolites. This leads to osmotic imbalance and fungal cell death. Amphotericin B also generates oxidative damage through reactive oxygen species.

Benefits and advantages

Remains the reference gold‑standard antifungal for severe systemic infections. In research it is used to model fungicidal membrane disruption, sterol-binding kinetics and liposomal drug delivery systems.

Side effects and risks

Severe nephrotoxicity, electrolyte disturbances, infusion reactions, fever and chills. Requires cytotoxic-grade handling with protective filtration systems.

Datasheet


Molecular Formula

C47H73NO17

Molecular Weight

924.1 g/mol

CAS Number

1397-89-3

Storage Condition

Conventional amphotericin B powder for injection should be stored at 2-8 °C. Reconstituted colloidal dispersions of conventional amphotericin B should be protected from light and are stable for 24 hours at room temperature or 1 week when refrigerated at 2-8 °C. Although the manufacturers state that reconstituted dispersions or IV infusions of amphotericin B should be protected from light during administration, potency is unaffected if the infusion is exposed to light for less than 8-24 hours.

Solubility

less than 1 mg/mL at 70 °F (NTP, 1992)

Purity

Purity information is available upon request (COA).

Synonym

amphotericin b; 1397-89-3; Amphotericine B; Amfotericina B; Halizon

IUPAC/Chemical Name

(1R,3S,5R,6R,9R,11R,15S,16R,17R,18S,19E,21E,23E,25E,27E,29E,31E,33R,35S,36R,37S)-33-[(2R,3S,4S,5S,6R)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-1,3,5,6,9,11,17,37-octahydroxy-15,16,18-trimethyl-13-oxo-14,39-dioxabicyclo[33.3.1]nonatriaconta-19,21,23,25,27,29,31-heptaene-36-carboxylic acid

InChl Key

APKFDSVGJQXUKY-INPOYWNPSA-N

InChl Code

InChI=1S/C47H73NO17/c1-27-17-15-13-11-9-7-5-6-8-10-12-14-16-18-34(64-46-44(58)41(48)43(57)30(4)63-46)24-38-40(45(59)60)37(54)26-47(61,65-38)25-33(51)22-36(53)35(52)20-19-31(49)21-32(50)23-39(55)62-29(3)28(2)42(27)56/h5-18,27-38,40-44,46,49-54,56-58,61H,19-26,48H2,1-4H3,(H,59,60)/b6-5+,9-7+,10-8+,13-11+,14-12+,17-15+,18-16+/t27-,28-,29-,30+,31+,32+,33-,34-,35+,36+,37-,38-,40+,41-,42+,43+,44-,46-,47+/m0/s1

References

https://pubchem.ncbi.nlm.nih.gov/compound/5280965;

3D Conformer.

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