In 2022,Lebrun, Stewart; Chavez, Sara; Chan, Roxanne; Nguyen, Linda; Jester, James V. published an article in Toxicology In Vitro. The title of the article was 《Ascorbic acid specifically reduces the misclassification of nonirritating reactive chemicals in the OptiSafe macromolecular eye irritation test》.Synthetic Route of C7H12O3 The author mentioned the following in the article:
Recently, we showed that the addition of physiol. concentrations of ascorbic acid, a tear antioxidant, to the OptiSafe macromol. eye irritation test reduced the false-pos. (FP) rate for chems. that had reactive chemistries, leading to the formation of reactive oxygen species (ROS) and mol. crosslinking. The purpose of the current study was to 1) increase the number of chems. tested to comprehensibly determine whether the antioxidant-associated reduction in OD is specific to FP chems. associated with ROS chemistries and 2) determine whether the addition of antioxidants interferes with the detection of true pos. (TP) and true neg. (TN) ocular irritants. We report that when ascorbic acid is added to the test reagents, retesting of FP chems. with reactive chemistries show significantly reduced OD values (P < 0.05). Importantly, ascorbic acid had no significant effect on the OD values of TP or TN chems. regardless of chem. reactivity. These findings suggest that supplementation of ascorbic acid in alternative ocular irritation tests may help improve the detection of TN for those commonly misclassified reactive chems. The experimental process involved the reaction of Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3Synthetic Route of C7H12O3)
Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Synthetic Route of C7H12O3
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