Molecule structure of 2-Nitrobenzenearsonic acid (CAS NO.5410-29-7):

IUPAC Name: (2-Nitrophenyl)arsonic acid 
Molecular Weight: 247.03714 g/mol
Molecular Formula: C₆H₆AsNO₅ 
Melting Point: 225 °C 
Boiling Point: 542.2 °C at 760 mmHg
Flash Point: 243.9 °C
Enthalpy of Vaporization: 86.32 kJ/mol
Vapour Pressure: 1.38E-12 mmHg at 25 °C 
CAS DataBase Reference: 5410-29-7(CAS DataBase Reference)
H-Bond Donor: 2
H-Bond Acceptor: 5
Rotatable Bond Count: 1
Exact Mass: 246.946194
MonoIsotopic Mass: 246.946194
Topological Polar Surface Area: 101
Heavy Atom Count: 13
Complexity: 244
Canonical SMILES: C1=CC=C(C(=C1)[N+](=O)[O-])[As](=O)(O)O
InChI: InChI=1S/C6H6AsNO5/c9-7(10,11)5-3-1-2-4-6(5)8(12)13/h1-4H,(H2,9,10,11)
InChIKey: UYEDGVZDGVIURN-UHFFFAOYSA-N
EINECS: 226-485-0 
Product Categories: As (Arsenic) Compounds; Classes of Metal Compounds; Semimetal Compounds

Arsenic and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

Poison by ingestion. When heated to decomposition it emits very toxic fumes of NO_x and As. See also ARSENIC COMPOUNDS and NITRO COMPOUNDS of AROMATIC HYDROCARBONS.
Hazard Codes: N, T
Risk Statements: 50/53-23/25 
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. 
R23/25:Toxic by inhalation and if swallowed.
Safety Statements: 61-60-45-28A-20/21-28 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets. 
S60:This material and its container must be disposed of as hazardous waste. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S28:After contact with skin, wash immediately with plenty of soap-suds. 
S20:When using, do not eat or drink. 
S21:When using do not smoke. 
S28:After contact with skin, wash immediately with plenty of soap-suds.
RIDADR: 1557
RTECS: CY5950000
HazardClass: 6.1(b)
PackingGroup: III

OSHA PEL: TWA 0.5 mg(As)/m³

 2-Nitrobenzenearsonic acid (CAS NO.5410-29-7) is also called (o-Nitrophenyl)arsonic acid ; 2-Nitrophenylarsonic acid ; 3-16-00-01059 (Beilstein Handbook Reference) ; Arsonic acid, (2-nitrophenyl)- ; BRN 2939905 ; NSC 12609 ; o-Nitrophenylarsenic acid . 2-Nitrobenzenearsonic acid (CAS NO.5410-29-7) is beige-yellowish powder. 2-Nitrobenzenearsonic acid (CAS NO.5410-29-7) is high toxic. It will produce toxic nitric oxide and arsenide gases by heat. So the storage environment should be ventilate, low-temperature and dry.