CAS Registry Number

CAS 2869-83-2 — Janus green B (C.I. 11050)

Janus green B (C.I. 11050) is a triarylmethane dye with applications in biology and medicine, primarily used as a vital stain in microbiology to differentiate live from dead bacteria in Gram-negative species. It binds selectively to cellular components, aiding in microscopic examination and viability assays. This chemical has a CAS number of 2869-83-2, molecular formula C30H31ClN6, and a molecular weight of 511.06 g/mol. It is stable at ambient storage conditions and carries no signal word for hazard classification. Molekula supplies Janus green B from research to bulk quantities with full documentation and ISO 9001:2015 traceability.