2-Aminobenzenearsonic acid
Synonym(s):2-Aminobenzenearsonic acid
- CAS NO.：2045-00-3
- Empirical Formula: C6H8AsNO3
- Molecular Weight: 217.05
- MDL number: MFCD00007630
- EINECS: 218-064-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-07-04 15:02:53
What is 2-Aminobenzenearsonic acid?
Chemical properties
grey-green to brown powder
The Uses of 2-Aminobenzenearsonic acid
o-Arsanilic Acid is an organoarsenic compound. o-Arsanilic Acid is a highly toxic contaminant and can be found in plants growing in contaminated soil.
What are the applications of Application
o-Arsanilic acid is used in the determination of total arsenic in urine samples using nickel and palladium as matrix modifiers
Purification Methods
Crystallise it from water or ethanol/ether. POISONOUS. [Beilstein 16 I 463.]
Properties of 2-Aminobenzenearsonic acid
| Melting point: | 154-155 °C(lit.) |
| Boiling point: | 519.3±52.0 °C(Predicted) |
| Density | 1.79 g/cm3 |
| solubility | 1 M NH4OH: soluble50mg/mL, clear to turbid (orange-brown) |
| form | solid |
| pka | pK1: ca 2;pK2: 3.77;pK3: 8.66 (25°C) |
| color | White to Light yellow to Light orange |
| Stability: | Hygroscopic, Moisture sensitive |
| CAS DataBase Reference | 2045-00-3(CAS DataBase Reference) |
| NIST Chemistry Reference | O-arsanilic acid(2045-00-3) |
Safety information for 2-Aminobenzenearsonic acid
| Signal word | Danger |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Environment GHS09 |
| GHS Hazard Statements |
H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P271:Use only outdoors or in a well-ventilated area. P273:Avoid release to the environment. P391:Collect spillage. Hazardous to the aquatic environment P405:Store locked up. P403+P233:Store in a well-ventilated place. Keep container tightly closed. P501:Dispose of contents/container to..… |
Computed Descriptors for 2-Aminobenzenearsonic acid
| InChIKey | LQCOCUQCZYAYQK-UHFFFAOYSA-N |
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