Results 301 to 310 of about 106,905 (354)

Comparative tumor initiating activity of 10-methylbenzo[a]pyrene, 7,10-dimethylbenzo[a]pyrene and benzo[a]pyrene

Cancer Letters, 1978
The tumor initiating activity on mouse skin of benzo[a]pyrene (BaP), 7,10-dimethylBaP, and 10-methylBaP was determined. Each compound was tested at initiating doses of 50 microgram and 100 microgram with promotion by application 3 times weekly of 2.5 microgram tetradecanoylphorbol acetate. BaP induced tumors in 40% (100 microgram) and 25% (50 microgram)
S S, Hecht, N, Hirota, D, Hoffman
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Ixias pyrene

Ixias pyrene (Linnaeus, 1764) Materials Type status: Other material. Occurrence: individualCount: 40; sex: unknown; occurrenceID: CANGIOMB 0195; Taxon: genus: Ixias; specificEpithet: pyrene; scientificNameAuthorship: (Linnaeus, 1764); Location: country: Vietnam; stateProvince: Ho Chi Minh City; Event: eventDate: 07/11/2025 Notes Recorded in ...
Dang, Hiep Ngoc, Huynh, Hoan Duc, Phan, Trung Van, Bui, Kiet Nguyen The, Luong, Thao Thi Thu, Nguyen, Vu Dang Hoang   +5 more
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Transplacental action of benzo(a)pyrene and pyrene

Bulletin of Experimental Biology and Medicine, 1977
The transplacental and direct action of benzo(a)pyrene (BP) on mice of strains A and C57BL and of their progeny was studied. BP was found to represent a carcinogenic risk for the progeny. The greatest carcinogenic effect in progeny of strain A mice was exhibited by BP in a dose of 6 mg: The frequency of development of lung tumors was 76.8% compared ...
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Ruthenium(III) Chloride Catalyzed Oxidation of Pyrene and 2,7‐Disubstituted Pyrenes: An Efficient, One‐Step Synthesis of Pyrene‐4,5‐diones and Pyrene‐4,5,9,10‐tetraones.

ChemInform, 2004
Pyrene and 2,7-disubstituted pyrenes have been oxidized with ruthenium(III) chloride (RuCl3) and sodium periodate (NaIO4) under very mild conditions to 4,5-diones or 4,5,9,10-tetraones. Thus, the oxidation has been controlled by varying the amount of oxidant and reaction temperature to proceed exclusively at the pyrene 4- and 5-positions or at the 4 ...
Jie, Hu, Dong, Zhang, Frank W, Harris
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Casinaria pyreneator

2018
Casinaria pyreneator AUBERT , 1960 nov.stat. (fig. 28) Casinaria mesozosta ssp. pyreneator AUBERT, 1960: 487-488 ♀♂ Lectotypus: (♀) 25.8.1958 Ville Amont (P.O.) (Lausanne), type studied and herewith designated. Paralectotypus: (♂) 27.8.1958, Usines Paulilles (P.O.) (Lausanne), type studied and herewith designated. syn. nov.
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Fluorescence Decay of Pyrene in a Hydrogenated Pyrene Matrix

Australian Journal of Chemistry, 1979
Pyrene, 4,5-dihydropyrene and 4,5,9,10-tetrahydropyrene have been found to form a true solid solution over a range of composition. The measured fluorescence decay lifetime of pyrene in a hydrogenated pyrene matrix has been found to depend on the wavelength at which the emission is monitored, but not on the wavelength of excitation.
CM Harris, BK Selinger
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Environmental effects on vibronic band intensities in pyrene monomer fluorescence and their application in studies of micellar systems

, 1977
K. Kalyanasundaram, J. K. Thomas
semanticscholar   +1 more source

Preferential Formation of Benzo[a]pyrene Adducts at Lung Cancer Mutational Hotspots in P53

Science, 1996
M. Denissenko, A. Pao, M. Tang, G. Pfeifer   +3 more
semanticscholar   +1 more source

Mechanically interlocked pyrene-based photocatalysts

Nature Catalysis, 2022
Amine Garci, Jacob A Weber, Ryan M Young   +2 more
exaly  

Pyrenes, Cyclopenta[]pyrenes, and Benzopyrenes

2010
C.-S. Chang, Y.-T. Wu
openaire   +1 more source