Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of Agricultural and Food Chemistry called UV ozonation of paraquat, Author is Kearney, Philip C.; Ruth, John M.; Zeng, Qiang; Mazzocchi, Paul, which mentions a compound: 22468-26-4, SMILESS is O=C(O)C1=NC=CC(O)=C1, Molecular C6H5NO3, Category: chiral-catalyst.
The use of UV irradiation in the presence of O2 or O3 was investigated as a method for degrading paraquat (I) [4685-14-7] prior to soil disposal. A solution of 1500 ppm of formulated I was slowly degraded after 7 h in a unit containing 66 low-pressure Hg vapor lamps with a maximum energy output at 254 nm. Addition of acetone [67-64-1] as a photosensitizer accelerated the rate of oxidative cleavage of I in laboratory-scale studies. Loss of 14C from [methyl-14C]I was observed in I solutions at 150 ppm, but not at 1500 ppm. Reaction products identified from I were 4-carboxy-1-methylpyridinium ion [36455-39-7] at 1500 ppm by HPLC, 4-picolinic acid [55-22-1], hydroxy-4-picolinic acid [22468-26-4], succinic acid [110-15-6], N-formylglycine [2491-15-8], malic acid [6915-15-7], and oxalic acid [144-62-7] as their Me3Si derivatives, and 4,4′-bipyridyl in dilute solutions by gas chromatog.-mass spectrometry.
Compounds in my other articles are similar to this one(4-Hydroxypicolinic acid)Category: chiral-catalyst, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.