Nile Blue A

Molecular Formula
C40H40N6O6S
Catalog Number
N1214
Supplier/Brand
Spectrum Chemical
CAS Number
3625-57-8

Nile Blue A, also known simple as Nile blue, is a fluorescent dye used in histology and biology, and as a stain for polyhydroxybutyrate granules in eukaryotic or prokaryotic cells. Ungraded products supplied by Spectrum are indicative of a grade suitable for general industrial use or research purposes and typically are not suitable for human consumption or therapeutic use.


Synonyms: Basic Blue 12 ; Nile Blue Sulfate

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2023