Natamycin

• CAT Number: A000293
• CAS Number: 7681-93-8
• Molecular Formula: C33H47NO13
• Molecular Weight: 665.70
• Purity: ≥95%
• Synonyms: Pimaricin
• Target: Antibiotic
• Solubility: Limited solubility
• Storage: 3 years -20C powder
• IUPAC Name: (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
• InChI: InChI=1S/C33H47NO13/c1-18-10-8-6-4-3-5-7-9-11-21(45-32-30(39)28(34)29(38)19(2)44-32)15-25-27(31(40)41)22(36)17-33(42,47-25)16-20(35)14-24-23(46-24)12-13-26(37)43-18/h3-9,11-13,18-25,27-30,32,35-36,38-39,42H,10,14-17,34H2,1-2H3,(H,40,41)/b4-3+,7-5+,8-6+,11-9+,13-12+/t18-,19-,20+,21+,22+,23-,24-,25+,27-,28+,29-,30+,32+,33-/m1/s1
• InChIKey: NCXMLFZGDNKEPB-FFPOYIOWSA-N
• SMILES: CC1CC=CC=CC=CC=CC(CC2C(C(CC(O2)(CC(CC3C(O3)C=CC(=O)O1)O)O)O)C(=O)O)OC4C(C(C(C(O4)C)O)N)O

Natamycin（Cat No.:A000293）is a broad-spectrum antifungal agent used primarily in food preservation and ophthalmic treatments. As a natural polyene macrolide antibiotic, it effectively inhibits fungal growth by binding to sterols in fungal cell membranes, disrupting their integrity. In the food industry, Natamycin prevents mold and yeast contamination in dairy products and baked goods. Medically, it treats fungal infections of the eye, such as keratitis and conjunctivitis, through topical formulations. With its minimal absorption and low toxicity, Natamycin is a safe and versatile antifungal solution for both food safety and ocular health.