| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
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 812 78 |
| Ultima descărcare din IBN: 2024-02-11 15:51 |
| Căutarea după subiecte similare conform CZU |
| 542.06:547.945:581.5 (1) |
| Практическая и лабораторная химия, препаративная и экспериментальная химия (138) |
| Органическая химия (484) |
| Экология растений. Этология. Растение и окружающая среда (172) |
 SM ISO690:2012JUMINA, Jumina, STYANINGRUM, Rizky Woro, SISWANTA, Dwi, TRIONO, Sugeng, PRIASTOMO, Yoga, HARIZAL, Harizal, SHOLIKHAH, Eti Nurwening, ZULKARNAIN, Abdul Karim. Synthesis and preliminary evaluation of several chalcone derivatives as sunscreen compounds. In: Chemistry Journal of Moldova, 2019, nr. 2(14), pp. 90-96. ISSN 1857-1727. DOI: https://doi.org/10.19261/cjm.2019.624 |
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  Chemistry Journal of Moldova |
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| Numărul 2(14) / 2019 / ISSN 1857-1727 /ISSNe 2345-1688 | ||||||
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| DOI:https://doi.org/10.19261/cjm.2019.624 | ||||||
| CZU: 542.06:547.945:581.5 | ||||||
| Pag. 90-96 | ||||||
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Four chalcone derivatives containing chloro and methoxy substituents were synthesized and pre-evaluated as broad-spectrum UV protector with intrinsic antioxidant activity. UV absorbance of chalcones 1-4 showed a wide range of UV absorbance values in UVB and UVA regions ( Λ max= 310-360 nm) and molar absorptivity values ( Λ = 14,000-20,000 M-1cm-1). Chalcones 3 and 4 showed better photostability than chalcones 1 and 2 because the lowering of their absorbance was smaller and slower under UVB irradiation. A combination of the spectra of chalcone derivatives 1-4 indicated that a formulation containing all four will provide a broad-spectrum sunscreen protecting the skin from UVA and UVB. |
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| Cuvinte-cheie chalcone, photostability, absorbance, sunscreen, broad-spectrum |
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