Description

2-Phenylpropionic Acid (Hydratropic Acid) is a high-purity aromatic carboxylic acid with the molecular formula C₉H₁₀O₂ and CAS number 492-37-5. This white to off-white crystalline solid is widely utilized in pharmaceutical, agrochemical, and organic synthesis applications due to its versatile reactivity as a building block. With a molecular weight of 150.17 g/mol, it offers excellent solubility in organic solvents like ethanol and ether while being sparingly soluble in water. Our product is rigorously tested to meet the highest purity standards (>98%) via HPLC/GC analysis, ensuring optimal performance in sensitive reactions. Suitable for use as a chiral intermediate, flavor/fragrance precursor, or ligand modifier in metal-organic frameworks (MOFs). Packaged under inert gas with batch-specific certificates of analysis for traceability.

Properties

• CAS Number: 492-37-5
• Complexity: 136
• IUPAC Name: 2-phenylpropanoic acid
• InChI: InChI=1S/C9H10O2/c1-7(9(10)11)8-5-3-2-4-6-8/h2-7H,1H3,(H,10,11)
• InChI Key: YPGCWEMNNLXISK-UHFFFAOYSA-N
• Exact Mass: 150.068079557
• Molecular Formula: C9H10O2
• Molecular Weight: 150.17
• SMILES: CC(C1=CC=CC=C1)C(=O)O
• Topological: 37.3
• Monoisotopic Mass: 150.068079557
• Physical Description: Solid
• Synonyms: 2-Phenylpropionic acid, 492-37-5, 2-Phenylpropanoic acid, Hydratropic acid, DL-2-Phenylpropionic Acid, alpha-Methylphenylacetic acid, Hydratropasaeure, alpha-Methylbenzeneacetic acid, Benzeneacetic acid, .alpha.-methyl-, ALPHA-PHENYLPROPIONIC ACID, (+-)-Hydratropasaeure, .alpha.-Methylphenylacetic acid, (+-)-hydratropic acid, .alpha.-Methylbenzeneacetic acid, .alpha.-Phenylpropionic acid, UNII-CH15E393A2, CHEBI:48526, Benzeneacetic acid, alpha-methyl-, DL-PPA, EINECS 207-752-0, NSC 42872, NSC-42872, Propanoic acid, 2-phenyl, NSC-245033, dl-.alpha.-Phenylpropionic acid, YPGCWEMNNLXISK-UHFFFAOYSA-, DTXSID80862027, NSC 245033, dl-alpha-Phenylpropionic acid, DTXCID30223422, alpha-methyl-benzeneacetic acid /OD/ 2-phenylpropionic acid, (+-)-2-PHENYLPROPIONIC ACID, inchi=1/c9h10o2/c1-7(9(10)11)8-5-3-2-4-6-8/h2-7h,1h3,(h,10,11), ypgcwemnnlxisk-ssdottswsa-n, ypgcwemnnlxisk-uhfffaoysa-n, ypgcwemnnlxisk-zetcqymhsa-n, (+/-)-2-Phenylpropionic acid, 2-Phenyl-propionic acid, (+/-)-2-phenylpropanoic acid, MFCD00002650, (+/-)-Hydratropic acid, (R)-(-)-Hydratropic acid, 2-Phenylpropionate, alpha-Phenylpropioic acid, Loxoprofen impurity, CH15E393A2, a-Methylbenzeneacetic acid, DL-?-phenylpropionic acid, 2-Phenylpropionicacid, 2328-24-7, (S)-(+)-Hydratropic acid, 2-phenyl propionic acid, alpha-Phenylpropioate, Benzeneacetic acid, .alpha.-methyl-, (R)-, Benzeneacetic acid, .alpha.-methyl-, (S)-, 2-phenyl propanoic acid, alpha-phenyl propionic acid, propanoic acid, 2-phenyl-, SCHEMBL3418, (?)-2-Phenylpropionic acid, (RS)-2-phenylpropionic acid, SCHEMBL297972, SCHEMBL727901, (+/-)2-phenylpropionic acid, racemic 2-phenylpropionic acid, 2-Phenylpropionic acid, 97%, (rac.)-2-phenylpropionic acid, CHEMBL370925, SCHEMBL1156724, SCHEMBL4016238, SCHEMBL4781088, SCHEMBL4807191, (+/-) 2-phenylpropionic acid, SCHEMBL10411845, BCP14307, BCP16764, NSC42872, STR03808, MSK165922, NSC245032, NSC245033, s6321, SBB007855, STL164373, AKOS005206767, AC-3206, CS-W016324, FP35013, HY-W015608, PS-4663, PD099465, SY004963, SY020842, SY021075, Hydratropic acid [MeSH: hydratropic acid], DB-021501, NS00006882, P0699, ST50824213, EN300-69310, F13477, 2-Phenylpropionic acid [MeSH: hydratropic acid], racemic (+)-alpha-methyl-alpha-phenylacetic acid, Q27121253, F0001-1284, Z756118128

Application

2-Phenylpropionic acid serves as a key intermediate in NSAID synthesis, particularly for profen-class drugs like ibuprofen. It’s employed in asymmetric hydrogenation studies for chiral compound production and as a precursor for liquid crystal materials. Researchers also utilize it in metabolic pathway investigations of aromatic acid derivatives.

Safety and Hazards

GHS Hazard Statements

• H315 (98%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (98%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (86%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (98%)
• Eye Irrit. 2A (98%)
• STOT SE 3 (86%)

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