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139025

Sigma-Aldrich

o-Arsanilic acid

98%

Synonym(s):

2-Aminobenzenearsonic acid

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About This Item

Linear Formula:
H2NC6H4AsO3H2
CAS Number:
2045-00-3
Molecular Weight:
217.05
EC Number:
218-064-5
MDL number:
MFCD00007630
UNSPSC Code:
12352100
PubChem Substance ID:
24848374
NACRES:
NA.22

assay

98%

form

powder

mp

154-155 °C (lit.)

solubility

1 M NH4OH: soluble 50 mg/mL, clear to turbid (orange-brown)

SMILES string

Nc1ccccc1[As](O)(O)=O

InChI

1S/C6H8AsNO3/c8-6-4-2-1-3-5(6)7(9,10)11/h1-4H,8H2,(H2,9,10,11)

InChI key

LQCOCUQCZYAYQK-UHFFFAOYSA-N

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General description

o-Arsanilic acid on condensation reaction with methacryloyl chloride yields o-methacryloylaminophenylarsonic acid.

Application

o-Arsanilic acid was used in the determination of total arsenic in urine samples using nickel and palladium as matrix modifiers. It was used to study the inhibition of the binding of labeled anti-cross-reactive idiotype(CRI) preparations to a CRI+ hybridoma proteins by haptens in mice.

pictograms

Skull and crossbonesEnvironment
GHS06,GHS09

signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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Certificates of Analysis (COA)

Lot/Batch Number
MKBG4503V
MKBF9645V
MKBF9562V
MKBH0331V
MKBH0329V

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M J Nelles et al.
The Journal of experimental medicine, 154(6), 1752-1763 (1981-12-01)
Previous reports have shown the A/J anti-para-azophenylarsonate (anti-Ar) antibodies that share a major cross-reactive idiotype (CRI) comprise a family of closely related but nonidentical molecules. Serological studies with CRI+ monoclonal anti-Ar antibodies have suggested the presence of a conserved idiotypic
Crystal and molecular structure of o-methacryloylaminophenylarsonic acid.
Percino MJ, et al.
Journal of Chemical Crystallography, 32(9), 307-314 (2002)
D E Nixon et al.
Clinical chemistry, 37(9), 1575-1579 (1991-09-01)
We evaluated the effectiveness of nickel and palladium with or without added potassium persulfate as matrix modifiers for the determination of total arsenic in urine. Complete recovery of pure aqueous solutions of As(III), As(V), cacodylic acid (DMA), monomethylarsinic acid (MMA)
Han Young Eom et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1006, 151-157 (2015-11-10)
A simple and sensitive derivatization method using toluene-3,4-dithiol as a derivatization reagent for the simultaneous analysis of seven arsenic compounds (roxarsone, nitarsone, p-arsanilic acid, o-arsanilic acid, phenylarsonic acid, phenylarsine oxide, and mono-methylarsonic acid) in chicken muscle was developed and validated

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