I-CAS:12227-89-3 Ifomula yeemolekyuli:Fe3O4 Ubunzima beMolekyuli:231.54 EINECS:235-442-5 235-442-5:ci 77499; CI Pigment Black 11; I-Iron oxide EMNYAMA; iikjasdiwals; Inqanaba le-Iron oxide Black pharma; Inqanaba le-Iron oxide Black izithambiso; I-Iron oxide ibakala lokutya okuMnyama; Fe3O4 nanoparticle