(R)-(-)-2-Phenylpropionic acid

(R)-(-)-2-Phenylpropionic acid
  • CAS No.:7782-26-5
Other grades of this product :
(R)-(-)-2-Phenylpropionic acid Basic information
Product Name:(R)-(-)-2-Phenylpropionic acid
Synonyms:(R)-HTA;(R)-(-)-HYDRATROPIC ACID;(R)-(-)-PHENYLPROPIONIC ACID;(R)-(-)-2-PHENYLPROPIONIC ACID;(R)-2-PHENYLPROPIONIC ACID;(R)-(-)-alpha-Methylphenylaceticacid;(R)-(-)-2-Phenylpropionicacid,97%;(r)-(-)-à-methylphenylacetic acid
CAS:7782-26-5
MF:C9H10O2
MW:150.18
EINECS:
Product Categories:Analytical Chemistry;e.e. / Absolute Configuration Determination (NMR);Carbonic Acid;Chiral Compounds;chiral;Enantiomer Excess & Absolute Configuration Determination
Mol File:7782-26-5.mol
(R)-(-)-2-Phenylpropionic acid Chemical Properties
Melting point 29-30 °C(lit.)
alpha -75 º (c=3,CHCl3)
Boiling point 115 °C1 mm Hg(lit.)
density 1.1 g/mL at 25 °C(lit.)
refractive index n20/D 1.523(lit.)
Fp >230 °F
storage temp. Sealed in dry,Room Temperature
form Low Melting Solid or Liquid
pka4.34±0.10(Predicted)
color Beige to slightly brown
optical activity[α]20/D 72°, c = 1.6 in chloroform
BRN 2207688
CAS DataBase Reference7782-26-5(CAS DataBase Reference)
NIST Chemistry ReferenceBenzeneacetic acid, «alpha»-methyl-, (R)-(7782-26-5)
Safety Information
Hazard Codes Xi
Risk Statements 36/37/38
Safety Statements 26-36-37/39
WGK Germany 3
10
HS Code 29163990
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
(R)-(-)-2-Phenylpropionic acid Usage And Synthesis
Chemical PropertiesColorless to light yellow liqui
UsesChiral building block. Resolving agent
DefinitionChEBI: The (R)-enantiomer of hydratropic acid.
Purification MethodsPurify the acids by vacuum distillation and by recrystallisation from pet ether. The S-anilide has m 103-104o (from H2O or CHCl3/*C6H6), [] D +47o (c 9, Me3CO) [Argus & Kenyon J Chem Soc 916 1939, Campbell & Kenyon J Chem Soc 25 1946, Levene et al. J Biol Chem 88 27, 34 1930]. [Beilstein 9 III 2417, 9 IV 1779.]
(R)-(-)-2-Phenylpropionic acid Preparation Products And Raw materials
Raw materialsAtropic acid-->(S)-4-PHENYL-1,3-OXAZOLIDINE-2-THIONE-->(4S)-(-)-4-Isopropyl-2-oxazolidinone-->(S)-(+)-4-Phenyl-2-oxazolidinone
Preparation Products(S)-(+)-2-Phenylpropionic acid

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