Auramine O

Molecular Formula
C17H21N3•HCl
Catalog Number
AU105
Supplier/Brand
Spectrum Chemical
CAS Number
2465-27-2

Auramine O, also known as Basic yellow 2 or Pyocatanium aureum, is a diarylmethane dye used to stain acid-fast bacteria and as a fluorescent stain; it is soluble in water and ethanol. 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 Yellow 2

Shipping Information

DOT: UN2811, Toxic solids, organic, n.o.s. (4,4'-carbonimidoylbis[n,N-dimethylbenzenamine] monohydrochloride), 6.1, PG III

Largest individual container shippable via:
UPS/FedEx Ground: 12 kg    UPS Air: 1 kg    FedEx Air: 500 g
Tariff No. 3822000000

Storage Information

Store in a Cool Place

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2023