Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， Quality Control of: Diazene-1,2-diylbis(piperidin-1-ylmethanone), Which mentioned a new discovery about 10465-81-3
Compositions useful in methods of treating humans and animals infected with viruses of the retrovirus group contain azoic compounds of the general formula STR1 wherein R1, R2, R3 and R4 are indentical or different and each represents an atom of hydrogen or an aliphatic or aromatic hydrocarbon radical comprising from 1 to 6 carbon atoms, R1 and R2 may be bonded together to form a heterocyclic ring with their adjacent nitrogen atom, and R3 and R4 may be bonded together to form a heterocyclic ring with their adjacent nitrogen atom; X1 and X2 are indentical or different and each represents an oxygen atom or an NR5 group, wherein R5 is a hydrogen atom, an aliphatic or aromatic hydrocarbon radical comprising from 1 to 6 carbon atoms, or a nitro group; and wherein when two NR5 groups are simultaneously present each R5 may be indentical to or different from the other.
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Reference：
Piperidine – Wikipedia,
Piperidine | C5H20865N – PubChem