| Identification | More | [Name]
(R)-(-)-2-PHENYLBUTYRIC ACID | [CAS]
938-79-4 | [Synonyms]
(R)-(-)-2-PHENYLBUTYRIC ACID
(R)-(-)-alpha-Ethylphenylaceticacid
(R)-(-)-2-Phenylbutyricacid,98+%
(r)-(-)-à-ethylphenylacetic acid
(2R)-2-Phenylbutanoic acid
(2R)-2-Phenylbutyric acid
(R)-2-Phenylbutanoic acid
(αR)-α-Ethylbenzeneacetic acid | [Molecular Formula]
C10H12O2 | [MDL Number]
MFCD00063165 | [Molecular Weight]
164.2 | [MOL File]
938-79-4.mol |
| Chemical Properties | Back Directory | [Appearance]
clear colorless liquid | [alpha ]
[α]D20 -92～-98゜ (c=4, C6H5CH3) | [Boiling point ]
102-104 °C/0.4 mmHg (lit.) | [density ]
1.055 g/mL at 25 °C(lit.)
| [refractive index ]
n20/D 1.516
| [Fp ]
>230 °F
| [storage temp. ]
Refrigerator | [solubility ]
Chloroform (Slightly), Ethanol (Slightly), Toluene (Slightly) | [form ]
Liquid | [color ]
Clear colorless | [Optical Rotation]
[α]20/D 93°, c = 0.9 in toluene | [BRN ]
2327346 | [CAS DataBase Reference]
938-79-4(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R22:Harmful if swallowed. | [Safety Statements ]
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [HS Code ]
29163900 |
| Hazard Information | Back Directory | [Chemical Properties]
clear colorless liquid | [Uses]
(R)-(-)-2-Phenylbutyric Acid, is the metabolite of Butamirate (B690025), which is a novel antitussive drug. | [Purification Methods]
Purify the acids by distillation at atmospheric pressure using an efficient column. The acid chlorides have b 106-107o/20mm, []D () and (+) 108o (c 2, *C6H6). [Levene et al. J Biol Chem 100 589 1933, Gold & Aubert Helv Chim Acta 41 1512 1958, ORD in heptane: Rothen & Levene J Chem Phys 7 975 1939, Beilstein 9 III 2461.] |
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