p-Nitrophenylacetic Acid
Title: p-Nitrophenylacetic Acid
CAS Registry Number: 104-03-0
CAS Name: 4-Nitrobenzeneacetic acid
Additional Names: p-nitro-a-toluic acid
Molecular Formula: C8H7NO4
Molecular Weight: 181.15
Percent Composition: C 53.04%, H 3.89%, N 7.73%, O 35.33%
Line Formula: NO2C6H4CH2COOH
Literature References: Prepd by hydrolysis of p-nitrobenzyl cyanide with 50% H2SO4: Robertson, Org. Synth. 2, 59 (1922); coll. vol. I, 406 (2nd ed., 1941).
Properties: Long, pale yellow needles from water. mp 153°. pK (25)° 3.98. Absorption spectrum: Hewitt et al., J. Chem. Soc. 101, 1774 (1912). Sparingly sol in cold water; sol in alcohol, ether, benzene.
Melting point: mp 153°
pKa: pK (25)° 3.98
 
Derivative Type: Methyl ester
Molecular Formula: C9H9NO4
Molecular Weight: 195.17
Percent Composition: C 55.39%, H 4.65%, N 7.18%, O 32.79%
Properties: mp 54°.
Melting point: mp 54°
 
Derivative Type: Benzyl ester
Molecular Formula: C15H13NO4
Molecular Weight: 271.27
Percent Composition: C 66.41%, H 4.83%, N 5.16%, O 23.59%
Properties: mp 92°.
Melting point: mp 92°
 
Derivative Type: Nitrile see p-Nitrobenzyl Cyanide

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