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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 We can supply other dyes.