| Identification | Back Directory | [Name]
(R)-3-PHENYLBUTYRIC ACID | [CAS]
772-14-5 | [Synonyms]
(R)-3-PHENYLBUTYRIC ACID
(3R)-3-Phenylbutyric acid
(R)-3-Phenylbutanoic acid
(3R)-3-Phenylbutanoic acid
(R)-2-Benzylpropanoic acid
[R,(-)]-2-Benzylpropionic acid
(r)-β-methylhydrocinnamic acid
(R)-BETA-METHYLHYDROCINNAMIC ACID
(2R)-2-Methyl-3-phenylpropionic acid
[R,(-)]-2-Methyl-3-phenylpropionic acid
(R)-3-Phenylbutyric acid >=98.5% (sum of enantiomers, GC) | [Molecular Formula]
C10H12O2 | [MDL Number]
MFCD00077841 | [MOL File]
772-14-5.mol | [Molecular Weight]
164.2 |
| Chemical Properties | Back Directory | [Boiling point ]
94-95 °C/0.3 mmHg (lit.) | [density ]
1.069 g/mL at 20 °C (lit.) | [refractive index ]
n20/D 1.517 | [form ]
liquid | [pka]
4.67±0.10(Predicted) | [optical activity]
[α]20/D 57±2°, c = 1% in benzene | [BRN ]
2501477 |
| Hazard Information | Back Directory | [Chemical Properties]
optical purity >99% | [Purification Methods]
Purify the acids as the 2-isomer above, i.e. by distillation, but under a good vacuum. [Prelog & Scherrer Helv Chim Acta 42 2227 1959, Levene & Marker J Biol Chem 93 761 1932, 100 685 1933, Cram J Am Chem Soc 74 2137 1952.] The R-amide crystallises from H2O, with m 101.5-102o, and [] 20 -16.5o (c 1.2, EtOH). The racemic acid has m 39-40o, b 134-136o/6mm, 158o/12mm [Marvel et al. J Am Chem Soc 62 3499 1940]. [Beilstein 9 IV 1813.] |
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