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Modification and Functionalization of the Guanidine Group by Tailor-made Precursors
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N,N,N,N-Tetra-ethyl-6-{2-[(E)-1-(4-nitro-phen-yl)ethyl-idene]hydrazino}-1,3,5-triazine-2,4-diamine

Xiao-Ru Pan, Fang-Fang Jian

    Acta Crystallographica. Section E, Structure Reports Online
    |May 18, 2011
    PubMed

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    Nitrous acid and nitric acids are two types of acids containing nitrogen, among which nitrous acid is weaker than nitric acid. Nitrous acid with a pKa value of 3.37 ionizes in water to give a nitrite ion and the hydronium ion.
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