Results 81 to 90 of about 2,707 (130)

Stability of piperonyl butoxide

Toxicology and Applied Pharmacology, 1970
Abstract Thin films of commercial grade piperonyl butoxide (PB) were stable during exposure to intense fluorescent light (8000 ft-cs) for periods up to 7 days. In addition, only 40% of the PB in films produced from insecticide aerosols was lost during 7-day exposure.
M A, Friedman, S S, Epstein
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Piperonyl Butoxide

2010
[Extract] Piperonyl butoxide (PBO) contains the methylenedioxyphenyl moiety, a molecule found in sesame oil and later named sesamin, and thus is classified as a member of the methylenedioxyphenyl group of chemicals. In 1947, it was semisynthesized from safrole, the principal component of camphor oil (Knowles, 1991; Tozzi, 1998).
Canyon, Deon V., Heukelbach, Jorg, Shaalan, Essam S., Speare, Richard   +3 more
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Lack of genotoxicity of piperonyl butoxide

Mutation Research/Genetic Toxicology, 1996
The genotoxicity of piperonyl butoxide has been investigated in bacterial mutation assays using tester strains TA98, TA100, TA1535, TA1537 and TA1538. The assays were conducted both with and without metabolic activation. Piperonyl butoxide was tested for mutation with and without metabolic activation in the CHO/HGPRT assay. Chromosomal aberrations were
W H, Butler, K L, Gabriel, F J, Preiss, T G, Osimitz   +3 more
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Residual piperonyl butoxide in agricultural products

Bulletin of Environmental Contamination and Toxicology, 1978
The residual levels of piperolyn butoxide (PB) in agricultural products were investigated for 531 samples of 10 species. For the determination of PB a high speed liquid chromatograph equipped with a fluorometric detector was used. The detection limit of PB was 0.1 ppm. PB was detected from 3 barleys and 3 wheats harvested in U.S.A. ans Australia.
K, Isshiki, S, Tsumura, T, Watanabe
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Toxicity of piperonyl butoxide to Boophilus microplus

Nature, 1974
SYNERGISM studies with the cattle tick Boophilus microplus have been effected by enclosing larvae in packets impregnated with olive oil solutions of the test chemicals and recording mortality after 48 h1,2. In these conditions larvae exposed continuously to 0.4% piperonyl butoxide were apparently unaffected.
C A, Schuntner, W J, Roulston, R H, Wharton   +2 more
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Teratogenic evaluation of piperonyl butoxide in the rat

Food and Cosmetics Toxicology, 1977
Summary Groups of pregnant albino rats were treated by gavage with doses of either 300 or 1000 mg piperonyl butoxide/kg. The compound was administered daily from day 6 to 15 of gestation. Controls received the corn oil vehicle alone. There was no reduction in body-weight gain in the test groups during the dosing period; maternal growth over the ...
G L, Kennedy, S H, Smith, F K, Kinoshita, M L, Keplinger, J C, Calandra   +4 more
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Potentiation of methylmercury toxicity by piperonyl butoxide

Bulletin of Environmental Contamination and Toxicology, 1978
Methylmercury (MeHg) is an extremely potent neurotoxin about 25% of which is degraded in vivo to inorganic mercury. Piperonyl butoxide (PB) is a widely used pesticidal synergist which inhibits many mammalian detoxification reactions. In a preliminary experiment with the high doses of PB and MeHg, PB induced a 12% decrease in mean survival time and a 20%
M A, Friedman, L R, Eaton
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Synergistic Toxicity and Carcinogenicity of ‘Freons’ and Piperonyl Butoxide

Nature, 1967
‘FREONS’ are fluorocarbons, with 1–4 carbon atoms, fluorine and sometimes chlorine, bromine or hydrogen, which are widely used as propellants (for example, with pressurized aerosols of foods or pesticides), fire extinguishers, solvents, and refrigerants.
S S, Epstein, S, Joshi, J, Andrea, P, Clapp, H, Flak, N, Mantel   +5 more
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Packaging Materials as Barriers to Piperonyl Butoxide Migration

Journal of Economic Entomology, 1970
The only treatment approved for use on the outer surface of insect-resistant packages is a coating of pyrethins synergized by piperonyl butoxide. These insecticides may migrate through the packaging materials into the stored commodity. Laboratory tests evaluated the effectiveness of various packaging materials as barriers to the migration of piperonyl ...
H A, Highland, M, Secreast, P H, Merritt
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Mechanistic Study on Hepatocarcinogenesis of Piperonyl Butoxide in Mice

Toxicologic Pathology, 2009
To clarify the mechanism of piperonyl butoxide (PBO)-induced hepatocarcinogenesis in mice, male mice were subjected to a two-thirds partial hepatectomy, N-diethylnitrosamine (DEN) initiation, and a diet containing 0.6% PBO for eight weeks. The incidence of γ-glutamyl transpeptidase (GGT)-positive foci and PCNA-positive cells was significantly increased
Masaomi, Kawai, Yukie, Saegusa, Meilan, Jin, Yasuaki, Dewa, Jihei, Nishimura, Tomoaki, Harada, Makoto, Shibutani, Kunitoshi, Mitsumori   +7 more
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