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Molecular formula :
CAS :
nature : organic molecular structure theory in the course of development of a theory. 1925 ~ 1930, the British gold (C. K. alleviation) On an intermediary, which is to say with classical structures can not be satisfactorily described by certain elements of the chemical behavior. He said that under the normal system is not saturated molecules exist electron transfer, the transfer by such electronic effects arising from the effect known as intermediary.
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