Natamycin

CAS Number
7681-93-8
EC Number
231-683-5
E Number
E235

What is Natamycin?

Natamycin (CAS 7681-93-8), also known as E235, is a naturally derived antifungal agent produced by fermentation of Streptomyces natalensis.

Where is Natamycin used?

  • Food: surface treatment on hard and semi-hard cheeses and dry-cured meats
  • Bakery: extends shelf life by preventing fungal spoilage
  • Beverages: controls yeast contamination in wine and fruit-based drinks
  • Pharmaceutical: active ingredient in ophthalmic suspensions for fungal keratitis
  • Personal care: preservation booster in creams and lotions
  • It inhibits mold and yeast growth without affecting bacteria or sensory characteristics.

Good to know: Pharmaceutical-grade material meets USP and Ph. Eur. standards.

Commercial specifications

  • 50 percent active content
  • Blended with lactose or glucose as a carrier

Other Names (Synonyms)

myprozine|antibiotic A-5283|PMR|E235|pimaricin|Pimafucin|Natacyn

Contact us for supply of Natamycin

Request Quote

What are the physical properties of Natamycin?

Melting Point 290 °C (decomp)
Boiling Point 952°C
Density 1.0 g/mL at 20 °C(lit.)
Flash Point >110°(230°F)
Appearance White to Off-White Solid
Color Cream colored
Form aqueous suspension
Water Solubility 0.41g/L(21 ºC)
Refractive Index 1.5960 (estimate)
Log P 0.880 (est)

Which trade and regulatory codes apply to Natamycin?

HS Code 29419090
Storage Class 11 - Combustible Solids
WGK (Germany) 2
Call Request Quote