Natamycin

Natamycin is a polyene amphoteric macrolide antibiotic with antifungal properties. Natamycin exerts its antifungal effects by binding to sterols in the fungal cell membrane thereby increasing membrane permeability. This leads to a leakage and loss of essential cellular constituents. Following ocular application, natamycin is retained in the conjunctival fornices and attains effective concentrations within the corneal stroma where it exerts its effect. Its therapeutic use is listed as antifungals, dermatologicals and ophthalmic agents. The directory classifies it as a commercial API with a fermentation-derived source/manufacturing origin. Other names for this substance include pimaricin, Myprozine and Tennecetin. Its PubChem CID is 5284447.

CAS No 52882-37-8
Molecular Formula C33H47O13N
Molecular Weight 665.7 g/mol
Synonyms (1R,3S,5R,7R,8E,12R,14E,16E,18E,20E,22R,24S,25R,26S)-22-[(2R,3S,4S,5S,6R)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-1,3,26-trihydroxy-12-methyl-10-oxo-6,11,28-trioxatricyclo[22.3.1.05,7]octacosa-8,14,16,18,20-pentaene-25-carboxylic acid

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