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492-37-5

Basic Information
CAS No.: 492-37-5
Name: DL-2-Phenylpropionic acid
Article Data: 319
Molecular Structure:
Molecular Structure of 492-37-5 (DL-2-Phenylpropionic acid)
Formula: C9H10O2
Molecular Weight: 150.177
Synonyms: Hydratropicacid (6CI,7CI,8CI);(RS)-2-Phenylpropanoic acid;Hydratropic acid;2-Phenylpropanoic acid;2-Phenylpropionic acid;NSC 245033;NSC 42872;dl-PPA;a-Methylbenzeneacetic acid;a-Methylphenylacetic acid;a-Phenylpropanoic acid;2328-24-7;
EINECS: 207-752-0
Density: 1.119 g/cm3
Melting Point: 5 °C
Boiling Point: 261 °C at 760 mmHg
Flash Point: 154.3 °C
Solubility: 10 g/L (20 °C) in water
Appearance: clear pale yellow to yellow liquid
Hazard Symbols: IrritantXi, CorrosiveC
Risk Codes: 36/37/38
Safety: 26-36-37/39
PSA: 37.30000
LogP: 1.87470
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  • 2-Phenylpropionic Acid

  • Casno:

    492-37-5

    2-Phenylpropionic Acid

    Min.Order: 1 Gram

    FOB Price:  USD $ 66.0-66.0

    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 n20/D 1.522(lit.) Fp >230 °F storage temp. Store below +30°

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  • DL-2-Phenylpropionic acid

  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 18.0-20.0

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  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

    Min.Order: 1 Gram

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  • DL-2-Phenylpropionic acid

  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

    Min.Order: 1 Kilogram

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  • DL-2-Phenylpropionic acid

  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

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  • DL-2-Phenylpropionic acid

  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

    Min.Order: 1 Metric Ton

    FOB Price:  USD $ 1.5-1.5

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  • DL-2-Phenylpropionic acid

  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

    Min.Order: 0

    FOB Price:  USD $ 0.0-0.0

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  • DL-2-Phenylpropionic acid

  • Casno:

    492-37-5

    DL-2-Phenylpropionic acid

    Min.Order: 1 Kilogram

    FOB Price:  USD $ 0.0-0.0

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Specification

The IUPAC name of this chemical is 2-phenylpropanoic acid. With the CAS registry number 492-37-5, it is also named as Hydratropic acid. The product's categories are Aliphatics; Carboxylic Acids; Organic Acids; Carboxylic Acids. It is clear pale yellow to yellow liquid which should be sealed in the container and stored in the ventilate and dry place.

The other characteristics of DL-2-Phenylpropionic acid can be summarized as: (1)ACD/LogP: 1.85; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.67; (4)ACD/LogD (pH 7.4): -1.12; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 15.85; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 2; (12)Index of Refraction: 1.538; (13)Molar Refractivity: 42 cm3; (14)Molar Volume: 134.1 cm3; (15)Polarizability: 16.65×10-24 cm3; (16)Surface Tension: 43.3 dyne/cm; (17)Enthalpy of Vaporization: 52.69 kJ/mol; (18)Vapour Pressure: 0.00601 mmHg at 25°C; (19)Rotatable Bond Count: 2; (20)Exact Mass: 150.06808; (21)MonoIsotopic Mass: 150.06808; (22)Topological Polar Surface Area: 37.3; (23)Heavy Atom Count: 11; (24)Complexity: 137.

Preparation of DL-2-Phenylpropionic acid: It can be obtaind by phenylacetic acid or benzyl cyanide. And it also can be produced by the hydrogenation of 2-phenyl-acrylic acid. This reaction needs reagents platinum black and glacial acetic acid.

Uses of DL-2-Phenylpropionic acid: It is used as pharmaceutical intermediate. And it also can react with methanol to get 2-phenyl-propionic acid methyl ester. This reaction needs reagent CBr4 at temperature of 20 °C under UV-irradiation. The reaction time is 25 hours. The yield is 95%.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection.

People can use the following data to convert to the molecule structure. 
1. SMILES:O=C(O)C(c1ccccc1)C
2. InChI:InChI=1/C9H10O2/c1-7(9(10)11)8-5-3-2-4-6-8/h2-7H,1H3,(H,10,11) 
3. InChIKey:YPGCWEMNNLXISK-UHFFFAOYAY