Study on the Structure and Mutagenicity of a New Disinfection Byproduct in Chlorinated Drinking Water
- 7 September 2005
- journal article
- research article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 39 (19), 7499-7508
- https://doi.org/10.1021/es0505954
Abstract
The structure of a new chlorinated disinfection byproduct (DBP) in drinking water is studied. The new DBP was prepared through chlorinating itsbest precursor, and it was extracted and isolated from the chlorination products. Its structure is identified as 2,2,4-trichloro-5-methoxycyclopent-4-ene-1,3-dione (TCMCD) through FTIR, MS, 1H NMR, and 13C NMR spectroscopic analysis and single-crystal X-ray diffraction method. Results of the Ames test with tester strain TA100 indicated that the newly identified DBP TCMCD is a mutagen.Keywords
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