CAS Registry Number

CAS 3118-97-6 — Sudan II (C.I.12140)

Sudan II (C.I. 12140) is a bright red azo dye primarily used in analytical chemistry for staining fats, oils, and waxes, as well as a colorant in solvents and plastics. It is also employed in microscopy and forensic analysis for its vivid coloration properties. This chemical has a CAS number of 3118-97-6, a molecular formula of C18H16N2O, and a molecular weight of 276.33. It is stored at ambient conditions, with a signal word of "Warning" indicating moderate hazard. Molekula supplies Sudan II from research to bulk quantities with full documentation and ISO 9001:2015 traceability.