nitrosophenol
noun
ni·tro·so·phenol
| \ nī‧¦trō(ˌ)sō+\
Definition of nitrosophenol
: a nitroso derivative of phenol
especially
: the unstable pale yellow to light brown crystalline para derivative ONC6H4OH that is tautomeric with quinone oxime, is made from phenol by reaction with nitrous acid, and is used as a dye intermediate
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