| 2-PHENYLPROPIONIC ACID Basic information |
| Product Name: | 2-PHENYLPROPIONIC ACID |
| Synonyms: | Benzeneacetic acid, .alpha.-methyl-;(n)-2-phenylpropionic acid;(n)-à-methylphenylacetic acid;2-HENYLPROPIONIC ACID;2-PHENYLPROPINICACID;dl-PPA;α-methyl-α-toluic acid;2-PHENYLPROPIONIC ACID 98% |
| CAS: | 492-37-5 |
| MF: | C9H10O2 |
| MW: | 150.18 |
| EINECS: | 207-752-0 |
| Product Categories: | Carboxylic Acids;Aliphatics;Carboxylic Acids;Organic acids;Pharmaceutical Intermediates |
| Mol File: | 492-37-5.mol |
| 2-PHENYLPROPIONIC ACID Chemical Properties |
| Melting point | 5 °C |
| Boiling point | 260-262 °C (lit.) |
| density | 1.1 g/mL at 25 °C (lit.) |
| refractive index | n |
| Fp | >230 °F |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | 9.9g/l |
| form | Liquid |
| pka | 4.34±0.10(Predicted) |
| color | Clear pale yellow to yellow |
| PH | 3 (5g/l, H2O, 20℃) |
| Water Solubility | 10 g/L (20 ºC) |
| BRN | 1863558 |
| CAS DataBase Reference | 492-37-5(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzeneacetic acid, «alpha»-methyl-(492-37-5) |
| EPA Substance Registry System | Benzeneacetic acid, .alpha.-methyl- (492-37-5) |
| Safety Information |
| Hazard Codes | Xi,C |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36-37/39 |
| WGK Germany | 3 |
| TSCA | Yes |
| HS Code | 29163900 |
| MSDS Information |
| Provider | Language |
|---|---|
| DL-Hydratropic acid | English |
| ACROS | English |
| SigmaAldrich | English |
| ALFA | English |
| 2-PHENYLPROPIONIC ACID Usage And Synthesis |
| Chemical Properties | clear pale yellow to yellow liquid |
| Uses | 2-Phenylpropionic acid is used in the preparation of ibuprofen derivatives for their anti-inflammatory activity. Also used in nucleation inhibitors in Dutch resolution of diastereomers. |
| Definition | ChEBI: A 2-arylpropionic acid carrying a phenyl group at position 2. It is a metabolite of alpha-methylstyrene (AMS), a volatile hydrocarbon. |
| Synthesis Reference(s) | Journal of the American Chemical Society, 99, p. 182, 1977 DOI: 10.1021/ja00443a033The Journal of Organic Chemistry, 51, p. 4354, 1986 DOI: 10.1021/jo00373a005Tetrahedron Letters, 21, p. 581, 1980 DOI: 10.1016/S0040-4039(01)85562-3 |
| Purification Methods | Fractionally distil the acid, or recrystallise it from pet ether (b 40-60o) with strong cooling (see references below). [Beilstein 9 II 348.] |
| 2-PHENYLPROPIONIC ACID Preparation Products And Raw materials |
| Raw materials | Benzeneacetonitrile-->Phenylacetic acid |
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