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![11. HO. 2.12 7.85 6.32 742 Molecular formula of Mefenamic acid: C15H15NO2 IUPAC name: 2-[(2,3-dimethylphenyl)amino]benzoic ac](https://i.imgur.com/kvhcicV.png)
11. HO. 2.12 7.85 6.32 742 Molecular formula of Mefenamic acid: C15H15NO2 IUPAC name: 2-[(2,3-dimethylphenyl)amino]benzoic acid Molar mass: 241.29 g/mol HDI = ((2C+2)+N-H-X)/2 = (33-15)/2 = 9 2.34 Functional groups: secondary amine shows only one N-H peak in IR at around 3200 COOH: 2500-3500 broad peak -OH stretching C=O: 1720 C=O stretching 1610: aromatic C=C stretching 1220: C-O stretching M+ peak: 241 UV-Vis: 2max=285 nm 1 HNMR: a: 2.12ppm: 3H, S: CH3-Ar b: 2.34ppm: 3H, S: CH3-Ar c: 6.32ppm: 1H, ddd (7,2,2Hz) one ortho and two meta coupling and ortho to-NH hence deshielded d: 6.70ppm: 1H, ddd(7,2,2Hz) one ortho and two meta coupling and para to -NH hence deshielded e: 6.89ppm: 1H, dd(7,7 Hz) two ortho couplings f: 7.02ppm: 1H, ddd(7,2,2Hz) one ortho and two meta coupling g: 7.54ppm: 1H, ddd(7,2,2Hz) one ortho and two meta coupling h: 7.42ppm: 1H.
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Dd(7,2Hz) one ortho and one meta coupling 6.89 7.02 7.54
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