Features:
1) Yellow fluorescent dye
2) Very soluble in water, soluble in ethanol
3) Used to stain acid-fast bacteria in spu

Features:
1) CAS no.: 2465-27-2; 12237-78-4
2) EINECS no.: 219-567-2
3) Formula: C₁₇H₂₁N₃HCl
4) Molecular weight: 303.83
5) Color index number: 41000
6) Synonyms:
a) Pyoctaninum aureum
b) Auramine hydrochloride
c) 1,1-bis(p-dimethylaminophenyl)methylenimine hydrochloride
d) Auramine yellow
e) 4,4'-bis(dimethylamino)benzhydrylidenimine hydrochloride
f) 4:4'-bis(dimethylamino)benzophenone-imine hydrochloride
g) Aizen auramine
h) 4,4'-(Imidocarbonyl) bis(N,N-dimethylaniline) monohydrochloride
i) Pyoctanunum aureum
j) Pyoktanin yellow
k) Canary yellow
l) Pyoktanin
m) Benzophenoneidum
7) Physical and chemical property:
a) Appearance: yellow to brown powder
b) Solubility: very soluble in water, soluble in ethanol
c) Melting point: 250°C (decomposes)
d) NFPA ratings:
i) Health: 1
ii) Flammability: 0
iii) Reactivity: 0
e) Stability: stable under ordinary conditions
8) Application:
a) Used to stain acid-fast bacteria in sputum or in paraffin sections of infected
tissue and as a component of the truant auramine-rhodamine stain for
tubercle bacilli
b) Used as an antiseptic agent
9) Absorbance: 435nm