Basic Red 2 CAS NO.477-73-6

Safranine O Safranin is used as a counter stain in some staining protocols, coloring all cell nuclei red. This is the classic counter stain in a Gr…

Safranine O Safranin is used as a counter stain in some staining protocols, coloring all cell nuclei red. This is the classic counter stain in a Gram stain. It can also be used for the detection of cartilage, mucin and mast cell granules. CAS No. 477-73-6 C.I.No. 50240 Chemical Formula C20H19ClN4 Molecular Weight 350.85 Dye Content ~95% Absorption Max (EtOH 50%) 530 - 534 nm Absorptivity (1%,1cm) > 1350 (on dry basis) Loss On Drying (110° c) 8% max