Occurrence and risk assessment of organophosphate esters and bisphenols in San Francisco Bay, California, USA was written by Shimabuku, Ila;Chen, Da;Wu, Yan;Miller, Ezra;Sun, Jennifer;Sutton, Rebecca. And the article was included in Science of the Total Environment in 2022.COA of Formula: C13H12O2 The following contents are mentioned in the article:
Organophosphate esters and bisphenols are two classes of industrial chems. that are ubiquitously detected in environmental matrixes due to high global production and widespread use, particularly in the manufacture of plastic products. In 2017, water samples collected throughout the highly urbanized San Francisco Bay were analyzed for 22 OPEs and 16 bisphenols using liquid chromatog.-electrospray ionization-Q Trap-mass spectrometry. Fifteen of the 22 OPEs were detected, with highest median concentrations in the order TCPP (42 ng/L) > TPhP (9.5 ng/L) > TBOEP (7.6 ng/L) > TnBP (7.5 ng/L) > TEP (6.7 ng/L) > TDCIPP (6.2 ng/L). Pairwise correlation anal. revealed several strong, pos. correlations among OPEs, and few weak, neg. correlations between OPEs and BPA, suggesting differences between the two classes with respect to their sources, pathways, and/or fate in the environment. Concentrations of OPEs and bisphenols observed in this study were generally consistent with reported concentrations in other estuarine and marine settings globally. TDCIPP exceeded existing predicted no-effect concentrations at some sites, and six other compounds (TCrP, IDDPP, EHDPP, TPhP, TBOEP, and BPA) were observed at levels approaching individual compound PNECs (not considering mixture effects), indicating potential risks to Bay biota. Periodic monitoring can be used to maintain vigilance in the face of potential regrettable substitutions. This study involved multiple reactions and reactants, such as 4,4′-Methylenediphenol (cas: 620-92-8COA of Formula: C13H12O2).
4,4′-Methylenediphenol (cas: 620-92-8) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Secondary alcohols are easily oxidized without breaking carbon-carbon bonds only as far as the ketone stage. No further oxidation is seen except under very stringent conditions.COA of Formula: C13H12O2
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts