6642. 4-Nitrosophenol

Nomenclature

CAS number: 104-91-6
Quinone oxime; quinone monoxime.
C6H5NO2; mol wt 123.11.
C 58.54%, H 4.09%, N 11.38%, O 25.99%.
Chemical structure

Properties

Pale yellow orthorhombic needles, browns at 126° (dec 144°). Explodes on contact with concentrated acid, alkali, or fire. Ka at 25° = 3.3 × 10-7. Moderately sol in water. Sol in dil alkalies giving green to brownish green solns. Sol in alc, ether, acetone.