E537 – Ferrous hexacyanomanganate

Description

Ferrous hexacyanomanganate is an inorganic complex salt and a Prussian Blue analogue ($text{Fe}_3[text{Mn}(text{CN})_6]_2$). It is highly insoluble and stable, structurally related to common anti-caking ferrocyanides (E535/E536), but is not a standardized or generally authorized food additive under this specific E-number