Nuclear fast red aluminium sulphate solution 0,1 %, for microscopy Nuclear fast red aluminium sulphate solution has a wide range of applications e.g. as counterstaining after histochemical reactions such as Berlin blue staining, after silver staining or during alcian blue or light green staining. It is also used for staining of nuclei during Elastica staining - a staining method for reproducing elastic fibres in tissue samples. Nuclear fast red aluminium sulphate solution stains cell nuclei red. Not a medical device / Not an IVD product