Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 135236-72-5, Name is Calcium 3-hydroxy-3-methylbutanoate, molecular formula is , belongs to Benzisoxazole compound. In a document, author is Kociolek, Martin George, HPLC of Formula: C10H18CaO6.
Benzisoxazole 2-oxides as novel UV absorbers and photooxidation inhibitors
Compounds with strong absorptions in the ultraviolet (UV) region of the spectrum, particularly the UVA and UVB, have seen much interest as UV screeners or absorbers in a wide variety of commercial products. A series of benzisoxazole 2-oxides have been synthesized and characterized by UV-vis spectroscopy. A number of derivatives have been shown to posses moderate to strong molar absorption coefficients in the UVB range (ca. 300nm), the strongest being those derived from benzophenones. Three other derivatives containing additional electron withdrawing groups showed strong molar absorption coefficients in the UVA (ca. 340nm). Solvent effects on the parent derivatives show changes in the molar absorption coefficients with little changes in the max values. Preliminary studies of these compounds as potential additives to prevent photooxidation of polystyrene showed considerable inhibition of polymer degradation with the parent unsubstituted benzisoxazole 2-oxide compounds being the most effective. Copyright (c) 2013 John Wiley & Sons, Ltd.
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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics