CAS Registry Number

CAS 85-83-6 — Sudan IV (C.I.26105)

Sudan IV (C.I.26105) is a synthetic azo dye used primarily in research and industrial applications for staining lipids and fats in microscopy. It is also used in the detection of oils and fats in food and biological samples. Available in powder form, it has a molecular weight of 380.44 g/mol, a molecular formula of C24H20N4O, and a CAS number of 85-83-6. Store at ambient temperatures. Warning signal word applies due to potential health hazards. Molekula supplies Sudan IV from research to bulk quantities with full documentation and ISO 9001:2015 traceability.