Identification | More | [Name]
2-(4-Methylphenyl)propanoic acid | [CAS]
938-94-3 | [Synonyms]
2-(4-METHYLPHENYL)PROPANOIC ACID 2-(4-METHYLPHENYL)PROPIONIC ACID 2-(P-TOLYL)PROPIONIC ACID (2RS)-2-(4-METHYLPHENYL)PROPANOIC ACID 4-METHYL-2-PHENYLPROPIONIC ACID ALPHA,4-DIMETHYLPHENYLACETIC ACID IBUPROFEN IMP D IBUPROFEN IMPURITY D 2-p-Tolylpropanoic acid Methylphenylpropinoic acid α,4-dimethylphenylacetic acid p-Methylhydratropic acid. 2-(4-tolyl)propanoic acid 2-(4-Tolyl)propionic acid 2-p-Tolylpropanoic acid /2-(4-Tolyl)propionic acid 2-(p-Methylphenyl)propionic acid a,4-Dimethylbenzeneacetic acid | [EINECS(EC#)]
627-324-0 | [Molecular Formula]
C10H12O2 | [MDL Number]
MFCD01111378 | [Molecular Weight]
164.2 | [MOL File]
938-94-3.mol |
Chemical Properties | Back Directory | [Appearance]
clear yellow liquid after melting | [Melting point ]
37-42 °C(lit.)
| [Boiling point ]
231.67°C (rough estimate) | [density ]
1.0041 (rough estimate) | [refractive index ]
1.518-1.52
| [Fp ]
>230 °F
| [storage temp. ]
Sealed in dry,Room Temperature | [solubility ]
Chloroform (Slightly), Methanol (Slightly) | [form ]
Solid | [pka]
4.44±0.10(Predicted) | [color ]
White to Off-White | [BRN ]
2251315 | [CAS DataBase Reference]
938-94-3(CAS DataBase Reference) |
Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . | [WGK Germany ]
3
| [HS Code ]
29163990 |
Hazard Information | Back Directory | [Chemical Properties]
clear yellow liquid after melting | [Uses]
2-(p-Tolyl)propionic acid is an impurity of Ibuprofen (I140000). Ibuprofen impurity D. | [Synthesis Reference(s)]
Synthesis, p. 231, 1984 DOI: 10.1055/s-1984-30784 Tetrahedron Letters, 36, p. 5641, 1995 DOI: 10.1016/0040-4039(95)01035-G | [General Description]
α,4-Dimethylphenylacetic acid is also referred to as 2-(4-methylphenyl)propanoic acid. It is an alkaline decomposition product of azalomycin-B, a macrolide antibiotic produced by Streptomyces hygroscopicus var. azalomyceticus. The reaction of pinonic acid with bromine in water affords 2-(4-methylphenyl)propanoic acid. |
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