Heavy metal.
Manganese compounds are used in gasoline to replace Pb as an anti-knock compound. (ref. ID; 6856)

[Mn-54]
Test organisms;
Oligochaeta: Lumbricus terrestris (ref. ID; 6856)

[Manganese(II) Chloride, Anhydrous] CAS[7773-01-5]
Chemical formula; MnCl2
Test organisms;
Protozoa: Colpidium campylum (ref. ID; 6081)
Oligochaeta: Eisenia fetida (ref. ID; 6895)
Oligochaeta: Tubifex tubifex (ref. ID; 6003)

[Manganese(II) Chloride Tetrahydrate] CAS[13446-34-9]
Chemical formula; MnCl2/4H2O
Chemical characterstics; water soluble
Test organisms;
Nematoda: Caenorhabiditis elegans (ref. ID; 6824)

[Manganese Nitrate]
Test organisms;
Nematoda: Caenorhabditis elegans (ref. ID; 6823)

[Manganese Sulfate Dihydrate]
Chemical formula; MnSO4/2H2O
Test organisms;
Oligochaeta: Tubifex tubifex (ref. ID; 6968)

[Manganese(II) Sulfate Tetrahydrate] CAS[10101-68-5]
Chemical formula; MnSO4/4H2O
Chemical characterstics; water soluble
Test organisms;
Oligochaeta: Eisenia fetida (ref. ID; 6907)

[Potassium Permanganate] CAS[7722-64-7] UN1490
Chemical formula; KMn04
Test organisms;
Protozoa: Colpidium campylum (ref. ID; 6081)
Protozoa: Diophrys oligothrix (ref. ID; 4526)
Protozoa: Pleuronema coronatum (ref. ID; 4521)