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Common NameBiphenyl
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中文通用名联苯
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IUPACbiphenyl
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CAS1,1′-biphenyl
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CAS No.92-52-4
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Molecular FormulaC12H10
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Molecular Structure
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Physical PropertiesMolecular weight:154.2; Physical form:Colourless crystals. Density:1.041; Melting point:69-71 °C; Flash point:106 °C; Solubility:Practically insoluble in water. Readily soluble in ethanol, diethyl ether, and other organic solvents.; Stability:Very stable in acidic and alkaline media.;
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ToxicologyOral:Acute oral LD50 for rats 3280, rabbits 2400, cats >2600 mg/kg. Depression of the central nervous system, paralysis, and convulsions have been observed in experimental animals. Inhalation:Prolonged exposure of humans to vapour concentrations >0.005 mg/l air is considered dangerous (J. Deichmann et al., J. Ind. Hyg. Toxicol., 1947, 29, 1). ADI:(JMPR) 0.03 mg/kg [1991].
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Environmental ProfileEnvironmental fate:
Animals:In mammals, following oral administration, metabolites identified include 4-hydroxybiphenyl and other phenolic compounds (H. D. West et al., Arch. Biochem. Biophys., 1956, 60, 14-20).Plant:Residues in fruit have been reviewed (A. Rajzman, Residue Rev., 1964, 8, 1: S. W. Souci & G. Maier-Haarlder, ibid., 1966, 16, 103). -
Transport InformationSignal Word:CAUTION;
Hazard Class:III(Slightly hazardous)
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