[Polyether carboxylic antibiotics]
The use of these antibiotics in the food industry results in the release of substantial amounts into the environment. (ref. ID; 4855)

Epigrisorixin (epimer of nigericin)
Test organisms;
Protozoa: Teterahymena pyriformis (ref. ID; 4855)

Epinigericin (epimer of nigericin)
Test organisms;
Protozoa: Teterahymena pyriformis (ref. ID; 4762, 4855)

Grisorixin
Chemical formula; C29-CH3
Test organisms;
Protozoa: Teterahymena pyriformis (ref. ID; 4855)

Nigericin
Chemical formula; C29-CH2OH
Test organisms;
Protozoa: Teterahymena pyriformis (ref. ID; 4762, 4855)