4-Phenoxybutanoic acid
- CAS NO.：6303-58-8
- Empirical Formula: C10H12O3
- Molecular Weight: 180.2
- MDL number: MFCD00042656
- EINECS: 228-603-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 01:25:00
What is 4-Phenoxybutanoic acid?
Purification Methods
It has been purified by recrystallisation from pet ether, *C6H6, Et2O/pet ether, EtOH and from H2O. It can be steam distilled or distilled in a good vacuum. [UV: Ramart-Lucas & Hoch Bull Soc Chim Fr [4] 51 824 1932, Dann & Arndt Justus Liebigs Ann Chem 587 38 1954.] The acid chloride has b 154-156o/20mm [Hamford & Adams J Am Chem Soc 57 921 1935], and the amide crystallises from *C6H6 as needles with m 113o. [Beilstein 6 IV 645.]
Properties of 4-Phenoxybutanoic acid
| Melting point: | 63-65 °C |
| Boiling point: | 170 °C / 7mmHg |
| Density | 1.143±0.06 g/cm3(Predicted) |
| solubility | ethanol: 0.1 g/mL, clear |
| form | powder to crystaline |
| pka | 4.56±0.10(Predicted) |
| color | White to Yellow to Orange |
| BRN | 1640610 |
| CAS DataBase Reference | 6303-58-8(CAS DataBase Reference) |
Safety information for 4-Phenoxybutanoic 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 4-Phenoxybutanoic acid
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