Basic

CAS No.	135-20-6
Product Name	Cupferron
Synonyms	N-Hydroxy-N-nitrosobenzenamine ammonium salt; N-Nitroso-N-phenylhydroxyamine ammonium salt; Cupferron for analysis; copperone; 2-oxo-1-phenylhydrazinolate; ammonium 2-oxo-1-phenylhydrazinolate; benzenamine, N-hydroxy-N-nitroso-, ammonium salt (1:1); N-Nitroso-N-phenylhydroxylamine ammonium salt; N-Nitrosophenylhydroxylamine ammonium salt
Molecular Formula	C6H9N3O2
Molecular Weight	155.1546

Physical property

Melting point	150-155℃
Boiling point	243.8°C at 760 mmHg
Flash point	101.3°C
Water solubility	<0.1 g/100 mL at 18.5℃

Hazard Symbols	T:Toxic;
Risk Codes	R25:; R36/37/38:; R40:;
Safety Description	S26:; S36/37:; S45:;