p-Aminoazobenzene
Title: p-Aminoazobenzene
CAS Registry Number: 60-09-3
CAS Name: 4-(Phenylazo)benzenamine
Additional Names: C.I. Solvent Yellow 1; p-(phenylazo)aniline; p-aminodiphenylimide; aniline yellow; C.I. 11000
Molecular Formula: C12H11N3
Molecular Weight: 197.24
Percent Composition: C 73.07%, H 5.62%, N 21.30%
Literature References: Prepd from aniline, NaNO2, and HCl: A. I. Vogel, A Text-Book of Practical Organic Chemistry (Longmans, Green & Co., New York, 3rd ed., 1956) p 627; W. R. Hydro, T. L. Willard, US 2894942 (1959 to Goodrich); Colour Index vol. 4 (3rd ed., 1971) p 4014.
Properties: Brownish-yellow needles with a bluish cast. mp 128°. bp above 360°. Slightly sol in water; freely sol in alc, benzene, chloroform, ether. Reduces alcoholic ammoniacal AgNO3.
Melting point: mp 128°
Boiling point: bp above 360°
Use: In form of its salts in dyeing; intermediate in manuf of Acid Yellow, diazo dyes and indulines.

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