peroxynitriten.
/pəˌrɒksɪˈnʌɪtrʌɪt/, U.S. /pəˌrɑksɪˈnaɪˌtraɪt/ Chemistry.
A nitrite containing a higher proportion of oxygen than the simple nitrite; spec. one containing the group —O—ONO. Also: the anion O—ONO−.
ΚΠ
1956 Industr. & Engin. Chem. Sept. 1525/1 The substance is an acetyl nitroso or nitro compound, or acetyl nitrite, nitrate, or peroxynitrite.
1973 Jrnl. Amer. Chem. Soc. 95 16 Presumably the initial product is the peroxynitrite CH3O2 + NO → CH3O2NO.
1991 Lancet 21 Dec. 1561/2 Although NO can ‘scavenge’ the superoxide anion (O2) through direct chemical interaction, the product formed, peroxynitrite, may decompose to form other tissue-damaging agents such as the hydroxyl radical.
2000 R. L. Walford Beyond 120-year Diet vii. 172 The d-gamma form [of vitamin E]..may be involved in reactions with nitric oxide, preventing the formation of the damaging peroxynitrite molecule.
2002 Science 8 Feb. 925/2 Mycobacterium tuberculosis defends itself against oxidative attack (primarily peroxides and peroxynitrite) by sacrificing reducing equivalents.
This is a new entry (OED Third Edition, December 2005; most recently modified version published online March 2022).
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