2-Nitrophenoxyacetic acid
- CAS NO.：1878-87-1
- Empirical Formula: C8H7NO5
- Molecular Weight: 197.14
- MDL number: MFCD00016993
- EINECS: 217-527-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is 2-Nitrophenoxyacetic acid?
Chemical properties
beige powder
Definition
ChEBI: A monocarboxylic acid comprising acetic acid substituted at the alpha carbon with a 2-nitrophenoxy group.
Purification Methods
Crystallise the acid from water, and dry it over P2O5 in vacuo. The S-benzylisothiuronium salt has m 155-156o (from EtOH). [Hayes & Brooch J Am Chem Soc 65 1577 1943, Beilstein 6 H 220, 6 II 211, 6 III 804, 6 IV 1261.]
Properties of 2-Nitrophenoxyacetic acid
| Melting point: | 157-160 °C(lit.) |
| Boiling point: | 334.23°C (rough estimate) |
| Density | 1.5023 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| pka | pK1:2.896 (25°C) |
| form | powder to crystal |
| color | White to Light yellow |
| Water Solubility | Soluble |
| BRN | 2114909 |
| CAS DataBase Reference | 1878-87-1(CAS DataBase Reference) |
| EPA Substance Registry System | (2-Nitrophenoxy)acetic acid (1878-87-1) |
Safety information for 2-Nitrophenoxyacetic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 2-Nitrophenoxyacetic acid
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