Natamycin CAS 7681-93-8 is a natural occurring anti-mycotic product which is classified as a polyene macrolide and can be produced through fermentation by Streptomyces spp. sale Natamycin CAS 7681-93-8 not only broadly and highly effectively inhibits the growth of various moulds and yeasts, but also inhibits the production of their toxins. It can be widely used in food preservation and as an anti-fungal treatment. sale Natamycin CAS 7681-93-8 has no effect on bacteria, so it does not inhibit the natural maturing processes of yoghurt, cheese, fresh ham, sausage, etc.