2-hydroxybiphenyl

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2-hydroxybiphenyl

[¦tü hī¦dräk·sē·bī′fen·əl]
(organic chemistry)
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Reregistration Eligibility Decision for 2-phenylphenol and Salts (Orthophenylphenol or OPP).
There are other anti-contaminants with lower toxicity, such as the sodium benzoate (L[D.sub.50] for rats> 1940 mg.[kg.sup.-1]) (Ma, 2009); potassium sorbate (L[D.sub.50] for rats of 3800 to 4300 mg.[kg.sup.-1]) (Reckitt Benckiser, 2010); and 2-phenylphenol (L[D.sub.50] for rats of 3200 to 3500 mg.[kg.sup.-1]) (Tayama et al., 1983), all with lower toxicity than formaldehyde (L[D.sub.50] for rats of 100 mg.[kg.sup.-1]) (Deng et al., 2014).
The objective of this study was to evaluate the implications of the substitution of formaldehyde by the anti-contaminants sodium benzoate, potassium sorbate and 2-phenylphenol in the artificial diet of D.
The anti-contaminants used in the diets to replace formaldehyde were: potassium sorbate (3.7 g), 2-phenylphenol (1.8 g) and sodium benzoate (3.7 g), compared to a standard diet (formaldehyde - 10 ml) and deionized water as control.
Insects fed on the control had lower larval viability compared to insects fed with diets containing sodium benzoate, formaldehyde and 2-phenylphenol, and lower pupal viability compared to insects fed with diets with sodium benzoate, formaldehyde, potassium sorbate and 2-phenylphenol (Table 2).
Regarding the larval period, larvae fed in the control took longer to complete this phase of development, differing significantly from those fed diets containing sodium benzoate, potassium sorbate and 2-phenylphenol (Table 3).
Pupae from larvae fed with sodium benzoate and 2-phenylphenol were heavier than those fed with formaldehyde (Table 3), which could be explained by a possible phagostimulant action of these anti-contaminants, which would provide a higher dietary intake by the larvae in the feeding process and as a consequence an increase in the pupae weight, or even, these products could, due to their specific action, have protected the diet from the qualitative degradation, which may have favored the ingestion, conversion and use of the food by the insect, leading to the production of better quality insects.
saccharalis larvae fed with diet containing 2-phenylphenol and formaldehyde, differing from those that parasitized larvae fed with a diet containing sodium benzoate (Table 6).
saccharalis larvae fed with a diet containing 2-phenylphenol presented high larval and pupal viability, low percentages of undeveloped larvae, short larval period and high pupal weight.
Various trapping reagents are used for absorbing ozone like, 1,2-di(4-pyridyl)-ethylene, potassium iodide, nitrite, indigo/indigo carmine compounds, 3-methyl-2-benzothiazolinone acetone azine with 2-phenylphenol and p-acetamidophenol.
Others (n = 44) Amitraz Benfuresate Bentazone Benzoximate Biphenyl Bitertanol Bromopropylate Chinomethionat Chloridazon Dazomet Diquat Ethoxyquin Fenarimol Ferimzone Fluazinam Imazalil Imidacloprid Iminoctadine Indanofan Ioxynil octanoate Iprodione Isoprothiolane Lenacil 4-Chloro-o-toloxyacetic acid (MCPA) 2,4-Dichlorophenoxyacetic acid (2,4-D) Paraquat Pendimethalin 2-Phenylphenol Probenazole Procymidone Propiconazole Pyrazolynate Pyrazoxyfen Pyroquilon Sethoxydim Thiabendazole Thiocyclam Thiophanate-methyl Triadimefon Tricyclazole Triflumizole Trifluralin Triforine Vinclozolin EPN, O-ethyl O-p-nitrophenyl phenylphosphonothioate.