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ChemicalBook--->CAS DataBase List--->938-79-4

938-79-4

938-79-4 Structure

938-79-4 Structure
IdentificationMore
[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 PropertiesBack 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
[form ]

Liquid
[color ]

Clear colorless
[optical activity]

[α]20/D 93°, c = 0.9 in toluene
[BRN ]

2327346
[CAS DataBase Reference]

938-79-4(CAS DataBase Reference)
Safety DataBack 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 InformationBack 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.]
Spectrum DetailBack Directory
[Spectrum Detail]

(R)-(-)-2-PHENYLBUTYRIC ACID(938-79-4)1HNMR
(R)-(-)-2-PHENYLBUTYRIC ACID(938-79-4)FT-IR
(R)-(-)-2-PHENYLBUTYRIC ACID(938-79-4)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

(R)-(-)-2-Phenylbutyric acid(938-79-4)
[Alfa Aesar]

(R)-(-)-2-Phenylbutyric acid, 98+%(938-79-4)
[Sigma Aldrich]

938-79-4(sigmaaldrich)
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