Reference

Formation of mutagens and chemicals during water treatment chlorination

Formation of mutagens and chemicals during water treatment chlorination. Fielding, M.; Horth, H. (Water Res. Cent., Medmenham/Marlow/Bucks. SL7 2HD, UK). Water Supply, 4(3, Water Disinfect.), 103-26 (English) 1986. CODEN: WASUDN. ISSN: 0735-1917. DOCUMENT TYPE: Journal; General Review CA Section: 61 (Water) Section cross-reference(s): 4 In the chlorination of water, the precursors of the strongest mutagenic activity among the commonly occurring amino acids were tyrosine [60-18-4], phenylalanine [63-91-2], methionine [63-68-3], tryptophan [73-22-3], and proline [147-85-3]. Chlorination of humic acid-contg. water resulted in the formation of several mutagenic compds. including benzylcyanide [140-29-4], 3-chloro-4-hydroxybenzycyanide [58622-59-6], hexachlorocyclopentadiene [77-47-4], p-hydroxybenzylcyanide [14191-95-8] toluonitrile [140-29-4], 1,1,1-trichloroethane [71-55-6], and trichlorophenol [25167-82-2]. Many mutagenic compds. were present in drinking water, but at very low levels. Mutagenic compds. in water were alkali-labile; and they were destroyed by reducing agents. A review with 74 refs. is given.Except for chemicals metioned above, 51-35-4 and 545-06-2 are also used. .

Study on chemical constituents of Brassica alba (L) Boiss seed

Study on chemical constituents of Brassica alba (L) Boiss seed. Li, Shu; Chang, Xingruo (Inst. Tradit. Chin. Med., Shaanxi Acad. Tradit. Chin. Med., Peop. Rep. China). Shaanxi Xinyiyao, 12(9), 57-8 (Chinese) 1983. CODEN: SHIYDO. ISSN: 0253-9853. DOCUMENT TYPE: Journal CA Section: 11 (Plant Biochemistry) Five cryst. components were sepd. from the EtOH ext. of powd. seeds of B. alba. Results from physiochem. consts. anal. and spectroscopy identified these components as sinapine thiocyanate, b-sitosterol, sinapic acid, benzoic acid, and p-hydroxybenzylcyanide, resp. The identification of p-hydroxybenzylcyanide suggested the presence of sinalbin in the starting material; sinalbin was previously reported (Lou, X., 1965) to be hydrolyzed to produce p-hydroxybenzylcyanide, sinapine bisulfate, and glucose.Except for chemicals metioned above, 7431-77-8 and 14191-95-8 are also used. .