(4-Nitrophenyl)arsonic acid
[CAS 98-72-6]

Identification

• Classification: Analytical chemistry >> Analytical reagent >> Ion chromatography reagent
• Name: (4-Nitrophenyl)arsonic acid
• Synonyms: (p-Nitrophenyl)arsonic acid; 4-Nitrobenzenearsonic acid; Hep-a-Stat; Histostat; Histostat 50; NSC 5085; Nitarson; Nitarsone; p-Nitrobenzenearsonic acid; p-Nitrophenyl arsenic acid
• Molecular Formula: C₆H₆AsNO₅
• Molecular Weight: 247.04
• CAS Registry Number: 98-72-6
• EC Number: 202-695-8

Properties

• Solubility: Slightly soluble (2.1 g/L) (25 °C), Calc.^*
• Melting point: >310 °C (decomp)^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	3	H331
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute toxicity	Acute Tox.	3	H301
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400