Results 71 to 80 of about 14,504 (194)
2-[(4,6-Diaminopyrimidin-2-yl)sulfanyl]-N-(2-methylphenyl)acetamide
Acta Crystallographica Section E, 2014 In the title compound, C13H15NOS, the plane of the pyrimidine ring makes a dihedral angle of 54.73 (9)° with that of the o-tolyl ring. The molecule adopts an extended conformation, which is evident from the C—C(=O)—N—Car (ar = aromatic) torsion angle of ...
S. Subasri +4 more
doaj +1 more source
Depth of DNA photodamage in human corneas exposed to 222 nm or 254 nm UV
Photochemistry and Photobiology, EarlyView.Representative confocal 3D image of a section of a human cornea showing nuclei in blue (Hoechst 33342) and green, which was assigned to cells exhibiting Alexa555 conjugated to anti‐CPD antibody. The depth of photodamage was measured in Z‐stacks of the human corneal epithelium after exposure of the anterior surface to 50 or 100 mJ/cm2 at 222 or 254 nm ...
Manuela Buonanno +6 more
wiley +1 more source
Acta Crystallographica Section E, 2012 In the title compound, C23H25BrN4O3S2, the benzene rings bridged by the sulfonamide group are tilted relative to each other by 69.7 (1)° and the dihedral angle between the sulfur-bridged pyrimidine and benzene rings is 70.4  ...
Mohan Kumar +5 more
doaj +1 more source
Advances in organic UV filters for sunscreens over the past decade
Photochemistry and Photobiology, EarlyView.Highlighted organic UV filter frameworks that have been described for sunscreens over the past decade divided into three groups: derivatives of or inspired by approved organic UV filters, natural product‐based compounds, and miscellaneous. Abstract Ultraviolet (UV) radiation is a major environmental factor in photoaging, erythema, and skin cancer ...
Gabriela Zanella Marcon +4 more
wiley +1 more source
Photochemistry and Photobiology, EarlyView.Scaffold hopping strategy used to develop chalcones structure‐related to the avobenzone tautomer. Positive aspects of 2‐hydroxychalcones are highlighted. Abstract Chalcones are α,β‐unsaturated ketones with extended π‐conjugation, making them promising scaffolds for the development of organic UV filters.
Gabriela Zanella Marcon +11 more
wiley +1 more source
5-Bromo-2-chloropyrimidin-4-amine
Acta Crystallographica Section E, 2013 In the title compound, C4H3BrClN3, the pyrimidine ring is essentially planar (r.m.s. deviation from the plane = 0.087 Å). In the crystal, pairs of N—H...N hydrogen bonds connect the molecules into inversion dimers; these are connected by
Mohan Kumar +6 more
doaj +1 more source
Dynamic accumulation of cyclobutane pyrimidine dimers and its response to changes in DNA conformation. [PDF]
Nucleic Acids Res, 2023 Moirangthem R, Gamage MN, Rokita SE.
europepmc +1 more source
Photodermatology, Photoimmunology &Photomedicine, Volume 42, Issue 5, September 2026.ABSTRACT Background/Purpose Visible light (VL), and particularly high‐energy visible light (HEVL), reaching Earth's surface has emerged as a relevant contributor to skin damage. VL has been implicated in oxidative stress, inflammation, pigmentation disorders, and photoaging, especially in individuals with darker skin phototypes.
Azahara Rodríguez‐Luna +5 more
wiley +1 more source
Acta Crystallographica Section E, 2009 The dihedral angle between the planes of two aromatic rings in the title compound [systematic name: 3-benzoyl-5-chloro-pyrimidine-2,4(1H,3H)-dione], C11H7ClN2O3, is 86.79 (6)°.
Keith Clinch, Graeme J. Gainsford
doaj +1 more source
Probing of DNA Photochemistry with C-Nucleosides of Xanthones and Triphenylene as Photosensitizers To Study the Formation of Cyclobutane Pyrimidine Dimers. [PDF]
JACS Au, 2023 Häcker S +3 more
europepmc +1 more source