https://www.selleckchem.com/products/eft-508.html
This observation is rationalized as being due to the energy requirement for isomerization to the lowest energy structure, being substantially higher than that for simple loss of NO2 radical. Experimental mass spectrometry fragmentation results indicated that the loss of N, O2, H was the result of a loss of NO radical followed by loss of OH radical. A comparison of the experimental IRMPD and computed IR spectra revealed that following NO radical loss, the structure entailing a hydride shift from the methylene bridge to the guanidine moie
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