Bisphenol A and its structural analogues in infant formulas available in the Brazilian market: Optimisation of a UPLC-MS/MS method, occurrence, and dietary exposure assessment was written by Petrarca, Mateus Henrique;Perez, Mary Angela Favaro;Tfouni, Silvia Amelia Verdiani. And the article was included in Food Research International in 2022.SDS of cas: 620-92-8 The following contents are mentioned in the article:
For the first time, structural analogs to bisphenol A were investigated in infant formulas marketed in Brazil. A fast and high throughput UPLC-MS/MS method was established for simultaneous anal. of bisphenol A, B, E, F, and S in complex infant formula matrixes. The influence of mobile phase composition on electrospray ionization response in neg. mode was studied to improve the detectability of the method. As also, the main sample preparation variables that could affect the extraction and cleanup were screened by the Plackett-Burman design. The method performance characteristics were adequate, including reliable limits of detection (5-10 μg kg-1) and quantification (10-20 μg kg-1) with suitable recoveries (84.2-108.9 %) and precision (≤18 %). Sixty-one infant formulas were analyzed, and 36 % of total samples contained at least one bisphenol analog, whose levels ranged between 10.9 and 198.9 μg kg-1. Based on a deterministic approach, the estimated daily intakes for babies up to 6 mo old, fed exclusively with infant formula, were below the temporary tolerable daily intake of 4 μg kg-1 body weight set for bisphenol A by the European Food Safety Authority. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8SDS of cas: 620-92-8).
4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Under appropriate conditions, inorganic acids also react with alcohols to form esters. To form these esters, a wide variety of specialized reagents and conditions can be used. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.SDS of cas: 620-92-8
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts