Basic

CAS No.	121-19-7
Product Name	4-Hydroxy-3-nitrobenzenearsonic acid
Synonyms	Roxarsone; 2-nitrophenol-4-arsonic acid; 4-Hydroxy-3-nitrophenylarsonic acid; Nitrophenol-4-arsenic acid; 3-Nitro-4-Hydroxybenzenearsonic acid
Molecular Formula	C6H6AsNO6
Molecular Weight	263.0365

Physical property

Melting point	>300℃
Boiling point	537.3°C at 760 mmHg
Flash point	240.3°C
Water solubility	<0.1 g/100 mL at 23℃

Hazard Symbols	T:Toxic; N:Dangerous for the environment;
Risk Codes	R23/25:; R50/53:;
Safety Description	S20/21:; S28:; S45:; S60:; S61:;