Bisphenol A and its analogues in paired urine and house dust from South China and implications for children’s exposure was written by Yang, Yan;Shi, Yumeng;Chen, Da;Chen, Haojia;Liu, Xiaotu. And the article was included in Chemosphere in 2022.Application of 620-92-8 The following contents are mentioned in the article:
Following the restriction of bisphenol A (BPA) in certain products, a number of bisphenol analogs (BPs) have been used as BPA replacements in different applications, raising environmental and health concerns. The present study determined a total of 13 bisphenol analogs in house dust and children urine from South China families (n = 46). Among all BPs, BPA, bisphenol S (BPS) and bisphenol F (BPF) were frequently detected in house dust, with concentrations ranging from 0.54 to 26.2μg/g (median: 2.60μg/g), 0.07-11.5μg/g (median: 0.32μg/g) and 0.02-2.4μg/g (median: 0.29μg/g), resp. BPA (median: 2.43 ng/mL) was also the dominant BP in children urine samples, accounting for 75.2 ± 27.4% of the total concentrations of urinary BPs, followed by BPS (0.23 ng/mL), whereas BPF was only detected in less than 30% of urine samples. Children’s daily intake of bisphenols through dust ingestion and total daily intakes were estimated based on the dust and urine concentrations, resp. The estimated intake of BPA, BPS and BPF via house dust ingestion accounted for 9%, 12% and 38% of the total intakes predicted based on urinary concentrations, resp., and exhibited very low exposure risks. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8Application of 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.Application of 620-92-8
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts