CAS Registry Number

CAS 2353-45-9 — Fast Green FCF (C.I. 42053)

Fast Green FCF (C.I. 42053) is a triarylmethane dye widely used in biological staining, particularly for nucleic acids in microscopy, and as a counterstain in protein gel electrophoresis. It appears green in solution and binds selectively to acidic cellular components. This chemical has a CAS number of 2353-45-9, a molecular formula of C37H34N2Na2O10S3, and a molecular weight of 808.85 g/mol. It is stored at ambient conditions, carries a signal word of "Warning," and is classified as hazardous under GHS regulations. Molekula supplies Fast Green FCF from research to bulk quantities with full documentation and ISO 9001:2015 traceability.