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2045-00-3

Basic Information
CAS No.: 2045-00-3
Name: 2-Aminobenzenearsonic acid
Molecular Structure:
Molecular Structure of 2045-00-3 (2-Aminobenzenearsonic acid)
Formula:  C6H8 As N O3
Molecular Weight: 217.056
Synonyms: Arsonicacid, (2-aminophenyl)- (9CI);o-Arsanilic acid (7CI,8CI);(2-Aminophenyl)arsonic acid;(o-Aminophenyl)arsonic acid;2-Aminobenzenearsonicacid;2-Arsanilic acid;NSC 12611;o-Aminobenzenearsonic acid;
EINECS: 218-064-5
Density: g/cm3
Melting Point: 145-150 ºC
Boiling Point: 519.3 °C at 760 mmHg
Flash Point: 267.8 °C
Appearance: Gray-beige crystalline powder.
Hazard Symbols:
Risk Codes: R23/25;R50/53   
Safety: S20/21;S28A;S45;S60;S61
PSA: 83.55000
LogP: -0.58900
Synthetic route
5410-29-7

2-nitrophenylarsonic acid

127-09-3

sodium acetate

2045-00-3

o-arsanilic acid

Conditions
ConditionsYield
With platinum Electrolysis;
5410-29-7

2-nitrophenylarsonic acid

127-09-3

sodium acetate

A

2045-00-3

o-arsanilic acid

B

(2,2'-hydrazo-diphenyl)-bis-arsonic acid

Conditions
ConditionsYield
Reduktion an einer Platinkathode.Electrolysis;
5410-29-7

2-nitrophenylarsonic acid

2045-00-3

o-arsanilic acid

Conditions
ConditionsYield
With iron(II) chloride in kalter alkalischer Loesung;
With water; iron; iron(II) chloride at 60 - 70℃;
With methanol; sodium amalgam at 55 - 60℃;
861527-92-6

N,N'-bis-(2-arsono-phenyl)-oxalamide

2045-00-3

o-arsanilic acid

Conditions
ConditionsYield
With sulfuric acid
5410-29-7

2-nitrophenylarsonic acid

iron (II)-chloride

iron (II)-chloride

2045-00-3

o-arsanilic acid

sodium-salt of/the/ 2-nitro-phenylarsonic acid

sodium-salt of/the/ 2-nitro-phenylarsonic acid

2045-00-3

o-arsanilic acid

Conditions
ConditionsYield
With ethanol; nickel at 50 - 90℃; under 69137.7 Torr; Hydrogenation;
33781-24-7

o-chlorophenylarsonic acid

ammonium carbonate

ammonium carbonate

A

2045-00-3

o-arsanilic acid

B

(2,2'-imino-diphenyl)-bis-arsonic acid

Conditions
ConditionsYield
With pentan-1-ol; copper diacetate; potassium carbonate at 135℃;
7664-93-9

sulfuric acid

861527-92-6

N,N'-bis-(2-arsono-phenyl)-oxalamide

2045-00-3

o-arsanilic acid

25910-37-6

2-Nitrophenyldiazonium

2045-00-3

o-arsanilic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: alkali; sodium arsenite
2: NaOH-solution; ferrosulfate
View Scheme
Multi-step reaction with 2 steps
1: sodium arsenite
2: iron; iron (II)-chloride; water / 60 - 70 °C
View Scheme
Multi-step reaction with 2 steps
1: sodium arsenite
2: sodium amalgam (4 percent ); methanol / 55 - 60 °C
View Scheme
Multi-step reaction with 2 steps
1: sodium arsenite
2: iron (II)-chloride / in kalter alkalischer Loesung
View Scheme
2045-00-3

o-arsanilic acid

920-46-7

Methacryloyl chloride

o-methacryloylaminophenylarsonic acid

Conditions
ConditionsYield
In ethanol at 4℃; for 2h;90%
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Chemistry

IUPAC Name: (2-Aminophenyl)arsonic acid 
Following is the structure of Arsonic acid,As-(2-aminophenyl)- (CAS NO.2045-00-3):
            
Empirical Formula: C6H8AsNO3
Molecular Weight: 217.0542
Flash Point: 267.8 °C
EINECS: 218-064-5
Melting point: 154-155 °C(lit.)
Solubility in water: Very soluble
Enthalpy of Vaporization: 83.38 kJ/mol
Boiling Point: 519.3 °C at 760 mmHg
Vapour Pressure: 1.31E-11 mmHg at 25 °C
Appearance of Arsonic acid,As-(2-aminophenyl)- (CAS NO.2045-00-3): grey-green to brown powder
Product Categories: As (Arsenic) Compounds; Semimetal Compounds; Classes of Metal Compounds
Canonical SMILES: C1=CC=C(C(=C1)N)[As](=O)(O)O
InChI: InChI=1S/C6H8AsNO3/c8-6-4-2-1-3-5(6)7(9,10)11/h1-4H,8H2,(H2,9,10,11)
InChIKey: LQCOCUQCZYAYQK-UHFFFAOYSA-N

Safety Profile

Hazard Codes: ToxicT,DangerousN
Risk Statements: 23/25-50/53 
R23/25:Toxic by inhalation and if swallowed.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 20/21-28-45-60-61
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. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S60:This material and its container must be disposed of as hazardous waste. 
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
RIDADR: 2811
WGK Germany: 3
HazardClass: 6.1
PackingGroup: III

Specification

Arsonic acid,As-(2-aminophenyl)- , its cas register number 2045-00-3. It also can be called o-Arsanilic acid ; and 2-Aminobenzenearsonic acid .
 Arsonic acid,As-(2-aminophenyl)- (CAS NO.2045-00-3) is hazardous, so the first aid measures and others should be known. Such as: When on the skin: first, should flush skin with plenty of water immediately for at least 15 minutes while removing contaminated clothing. Secondly, get medical aid. Or in the eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Then get medical aid soon. While, it's inhaled: Remove from exposure and move to fresh air immediately. Give artificial respiration while not breathing. When breathing is difficult, give oxygen. And as soon as to get medical aid. Then you have the ingesting of the product : Wash mouth out with water, and get medical aid immediately.