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Related to methylphenol: P-Cresol, metacresol


see cresolcresol
, CH3C6H4OH, any one of three aromatic alcohols present in coal tar. The three compounds are structural isomers; they may be thought of as hydroxy derivatives of toluene or as methyl derivatives of phenol.
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Molecule [D.sub.max] (nm) Position of substituent ortho meta para Common: Methylphenol 0.56 0.59 0.67 Ethylphenol 0.72 0.72 0.80 n-Propylphenol 0.82 0.83 0.91 n-Butylphenol 0.93 0.95 1.04 n-Pentylphenol 1.06 1.08 1.15 n-Hexylphenol 1.19 1.21 1.28 Cyclized on -C[H.sub.3]: Methylphenol 0.58 0.49 0.47 Ethylphenol 0.65 0.55 0.48 Propylphenol 0.72 0.61 0.57 Butylphenol 0.72 0.66 0.54 Pentylphenol 0.80 0.70 0.61 Hexylphenol 0.78 0.71 0.73 Table 2 Potential energies of covalent bonds and non-covalent interactions in ortho n-alkylphenols (common, cyclized on C[H.sub.3]-, cyclized as -C[H.sub.2]-[alpha] and -C[H.sub.2]-[beta]).
Integrated risk information system (iris) on methylphenol (106-44-5), Available from on the substance File list as march 15, 2000.120.siTTiNg m.
Some phenols in the soils originate from the transformation of pesticides such as 2.4-dichlorophenoxyacetic acid (2.4-D),4-chloro-2methylphenoxyacetic acid (MCPA), 2,4,5-trichloro-phenoxyacetic acid (2,4,5-T), 2-buthyl-4,6-dinitrophenol (dinoseb), and phenolic biocides like pentachlorophenol (PCP) [8] and from atmospheric depositions [9] Moreover, nitrophenols and methylphenol sources have been related to vehicular emissions [10,11].
The synthetic antioxidants 26-di-tert-butyl-4- methylphenol (BHT) and ascorbic acid (AA) were used as positive controls.
The degradation products of lignin include mainly a series of phenolic compounds, such as phenol, methylphenols, methoxyphenols, ethylphenols, propylphenols, and benzendiols (Mohan et al.