Syonyms Name: C.I. 77491; C.I. Pigment Red 101; C.I. Pigment Red 101 and 102; C.I. Pigment Red 102; Ferric oxide; Iron (III) Oxide Anhydrous; diiron trioxide; E 172; Iron (III) oxide - calcined; Ironoxide anhydrous; Ironoxideredbrownpowder; Iron oxide - precipitated; F